301 - Sociology & anthropology 1,281
658 - General management 606
614 - Incidence & prevention of disease 159
362 - Social welfare problems & services 136
616 - Diseases 132
613 - Personal health & safety 129
338 - Production 93
331 - Labor economics 66
155 - Differential & developmental psychology 63
158 - Applied psychology 63
309 - [Unassigned] 60
333 - Economics of land & energy 60
659 - Advertising & public relations 57
612 - Human physiology 53
610 - Medicine & health 50
300 - Social sciences 34
157 - [Unassigned] 31
620 - Engineering & allied operations 27
363 - Other social problems & services 23
628 - Sanitary & municipal engineering 23
796 - Athletic & outdoor sports & games 23
711 - Area planning 22
615 - Pharmacology & therapeutics 21
361 - Social problems & social welfare in general 19
509 - Historical, geographic & persons treatment 19
574 - [Unassigned] 19
339 - Macroeconomics & related topics 18
690 - Buildings 18
330 - Economics 17
153 - Mental processes & intelligence 15
394 - General customs 15
001 - Knowledge 14
364 - Criminology 14
352 - General considerations of public administration 13
618 - Gynecology, obstetrics, pediatrics & geriatrics 13
621 - Applied physics 13
649 - Child rearing & home care of persons 13
152 - Perception, movement, emotions & drives 11
354 - Administration of economy & environment 11
174 - Occupational ethics 10
651 - Office services 10
350 - Public administration & military science 9
639 - Hunting, fishing & conservation 9
371 - Schools & their activities; special education 8
551 - Geology, hydrology & meteorology 8
617 - Surgery & related medical specialties 8
629 - Other branches of engineering 8
630 - Agriculture & related technologies 8
631 - Techniques, equipment & materials 7
660 - Chemical engineering 7
600 - Technology 6
790 - Recreational & performing arts 6
332 - Financial economics 5
353 - Specific fields of public administration 5
370 - Education 5
388 - Transportation; ground transportation 5
573 - Specific physiological systems in animals 5
640 - Home & family management 5
643 - Housing & household equipment 5
647 - Management of public households 5
312 - [Unassigned] 4
334 - Cooperatives 4
607 - Education, research & related topics 4
641 - Food & drink 4
728 - Residential & related buildings 4
006 - Special computer methods 3
070 - News media, journalism & publishing 3
327 - International relations 3
335 - Socialism & related systems 3
392 - Customs of life cycle & domestic life 3
501 - Philosophy & theory 3
519 - Probabilities & applied mathematics 3
575 - Specific parts of & systems in plants 3
625 - Engineering of railroads & roads 3
657 - Accounting 3
693 - Specific materials & purposes 3
697 - Heating, ventilating & air-conditioning 3
719 - Natural landscapes 3
725 - Public structures 3
808 - Rhetoric & collections of literature 3
942 - England & Wales 3
016 - Bibliographies of works on specific subjects 2
131 - Parapsychological & occult methods 2
133 - Specific topics in parapsychology & occultism 2
150 - Psychology 2
176 - Ethics of sex & reproduction 2
179 - Other ethical norms 2
306 - Culture & institutions 2
341 - Law of nations 2
344 - Labor, social, education & cultural law 2
374 - Adult education 2
376 - [Unassigned] 2
378 - Higher education 2
384 - Communications; telecommunication 2
604 - Special topics 2
608 - Inventions & patents 2
664 - Food technology 2
704 - Special topics in fine & decorative arts 2
720 - Architecture 2
791 - Public performances 2