Genre
Electronic books
11,934
Congresses
9,755
Conference papers and proceedings
6,897
Periodicals
6,200
Biography
3,533
History
3,216
Congress
2,495
Biographies
2,244
Laboratory manuals
1,848
Periodical
1,646
Dictionaries
1,392
Classification
1,366
Electronic journals
1,184
Pictorial works
1,151
Guidebooks
1,143
Laboratory Manual
1,141
Laboratory Manuals
983
Bibliography
965
Juvenile literature
930
Handbooks, manuals, etc
886
Outdoor books
781
Early works to 1800
741
Early works
733
Pre-Linnean works
698
Handbooks and manuals
648
Bibliographies
629
Textbooks
603
Popular works
572
Périodiques
513
Aufsatzsammlung
452
Juvenile works
451
Catalogs
395
Academic theses
383
Périodiques
374
Autobiographies
348
Catalogs and collections
345
Correspondence
326
Computer network resources
303
congresses
286
Case studies
282
Electronic book
275
Thèses et écrits académiques
275
Congrès
272
Encyclopedias
265
Directories
264
Illustrated works
247
Fulltext
246
periodicals
245
Identification
237
Exhibitions
228
more ...