Genre
Congresses
5,366
Electronic books
5,290
Conference papers and proceedings
4,257
Periodicals
2,898
History
1,943
Handbooks, manuals, etc
1,276
Catalogs
980
Dictionaries
869
Handbooks and manuals
832
Technical reports
688
Early works to 1800
401
Directories
387
Biography
379
Electronic journals
353
Guidebooks
327
Patents
324
Biographies
233
Periodical
229
Early works
224
Tables
215
Encyclopedias
201
Amateurs' manuals
189
Congress
189
Bibliography
182
Guides, manuels, etc
180
Périodiques
165
Pictorial works
162
Statistics
158
Electronic book
144
Exhibitions
141
Specimens
137
Congrès
134
Charts, diagrams, etc
127
Guides et manuels
120
Périodiques
109
Textbooks
107
Academic theses
105
Trade catalogs
103
Bibliographies
101
Congrès
101
handbooks
101
Tables (Data)
99
Laboratory manuals
98
Exhibition catalogs
97
Abstracts
88
Handbook
80
Case studies
79
Popular works
78
Aufsatzsammlung
73
Thèses et écrits académiques
72
more ...