Genre
Periodicals
187
Problems, exercises, etc
68
Congresses
40
Early works to 1800
32
Textbooks
26
Tables
25
Bibliography
18
Handbooks, manuals, etc
15
Collections
11
Biography
8
Sources
8
Dictionaries
7
Bio-bibliography
5
Périodiques
4
Formulae
3
Terminology
3
Correspondence
2
Early works to 1900
2
Electronic books
2
Popular works
2
Textbooks for foreign speakers
2
Abstracts
1
Case studies
1
Charts, diagrams, etc
1
Classification
1
Dissertations
1
Examinations, questions, etc
1
Film catalogs
1
Imprints
1
Incunabula
1
Indexes
1
Nomograms
1
Outlines, syllabi, etc
1
Portraits
1
Programmed instruction
1
Readers
1
Statistics
1
Statistics, Vital
1
Terms and phrases
1
Union lists
1