Genre
Periodicals
267
Encyclopedias
26
Handbooks, manuals, etc
19
Electronic books
6
Case studies
4
Cross-cultural studies
4
Biography
3
Dictionaries
3
Sources
3
Textbooks
3
Congresses
2
Laboratory manuals
2
Periodiques
2
Popular works
2
Problems, exercises, etc
2
Abstracts
1
Book reviews
1
Forms
1
Formulae
1
Handbooks and manuals
1
Philosophy
1
Specifications
1
Statistics
1
periodicals
1