620 - Engineering 30,368
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650 - Management & public relations 18,943
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610 - Medicine & health 11,988
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660 - Chemical engineering 6,419
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330 - Economics 2,513
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690 - Building & construction 2,371
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670 - Manufacturing 1,955
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530 - Physics 1,753
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630 - Agriculture 1,570
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360 - Social problems & social services 1,536
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150 - Psychology 1,435
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300 - Social sciences, sociology & anthropology 1,352
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540 - Chemistry 1,213
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680 - Manufacture for specific uses 1,003
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000 - Computer science, knowledge & systems 903
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570 - Life sciences; biology 829
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500 - Science 688
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510 - Mathematics 688
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640 - Home & family management 638
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790 - Sports, games & entertainment 527
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340 - Law 515
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370 - Education 511
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600 - Technology 510
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550 - Earth sciences & geology 500
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380 - Commerce, communications & transportation 495
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350 - Public administration & military science 434
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590 - Animals (Zoology) 424
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720 - Architecture 385
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740 - Drawing & decorative arts 313
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710 - Landscaping & area planning 302
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170 - Ethics 150
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580 - Plants (Botany) 146
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020 - Library & information sciences 101
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770 - Photography & computer art 86
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520 - Astronomy 84
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390 - Customs, etiquette & folklore 77
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010 - Bibliographies 74
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800 - Literature, rhetoric & criticism 74
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700 - Arts 58
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070 - News media, journalism & publishing 52
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910 - Geography & travel 50
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320 - Political science 46
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310 - Statistics 39
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940 - History of Europe 33
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400 - Language 28
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730 - Sculpture, ceramics & metalwork 28
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430 - German & related languages 23
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410 - Linguistics 20
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060 - Associations, organizations & museums 19
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900 - History 16
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130 - Parapsychology & occultism 14
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420 - English & Old English languages 13
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440 - French & related languages 13
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780 - Music 12
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820 - English & Old English literatures 12
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750 - Painting 10
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120 - Epistemology 8
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970 - History of North America 7
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760 - Graphic arts 6
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810 - American literature in English 6
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180 - Ancient, medieval & eastern philosophy 2
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240 - Christian practice & observance 2
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280 - Christian denominations 2
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460 - Spanish & Portuguese languages 2
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490 - Other languages 2
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960 - History of Africa 2
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050 - Magazines, journals & serials 1
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110 - Metaphysics 1
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140 - Philosophical schools of thought 1
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190 - Modern western philosophy 1
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210 - Philosophy & theory of religion 1
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230 - Christianity & Christian theology 1
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250 - Christian pastoral practice & religious orders 1
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260 - Christian organization, social work & worship 1
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270 - History of Christianity 1
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920 - Biography & genealogy 1
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930 - History of ancient world (to ca. 499) 1
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950 - History of Asia 1
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980 - History of South America 1
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990 - History of other areas 1
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