Genre
Periodicals
1,503
Electronic books
844
Handbooks, manuals, etc
803
Legislative materials
656
Congresses
622
Early works to 1800
583
History
520
Handbooks and manuals
517
Dictionaries
502
Conference papers and proceedings
417
Designs and plans
386
Drawings
256
Bibliography
255
Tables
211
Early works
207
Statistics
203
Specifications
198
Architectural drawings
180
Radio news programs
148
Catalogs
122
Maps
112
Bibliographies
110
Internet videos
103
Directories
89
Pictorial works
82
Tables (Data)
63
Case studies
59
Electronic journals
59
Congrès
49
Terminology
48
Educational films
46
Exhibitions
45
Amateurs' manuals
44
Juvenile literature
43
Périodiques
41
Fiction
38
Juvenile works
36
Sources
35
Trade catalogs
35
Biography
32
Exhibition catalogs
32
Périodiques
32
Abstracts
31
Guides, manuels, etc
31
Technical reports
28
Illustrated works
27
Juvenile fiction
27
Academic theses
25
Congrès
22
Guides et manuels
22
more ...