Genre
Periodicals
11,860
History
6,127
Congresses
5,914
Conference papers and proceedings
4,440
Electronic books
3,597
Bibliography
2,622
Directories
2,234
Biography
1,548
Statistics
1,321
Case studies
1,234
Biographies
1,084
Bibliographies
986
Legislative hearings
808
Abstracts
711
Handbooks, manuals, etc
640
Periodical
639
Government publications
575
Congress
559
Electronic journals
466
Sources
463
Directory
455
Handbooks and manuals
391
Legislative materials
377
Catalogs
361
Criticism, interpretation, etc
350
Interviews
315
Treaties
314
Internet videos
262
Dictionaries
243
Documentary films
237
Technical reports
220
Observations
217
Radio news programs
215
Video recordings
213
Indexes
205
Festschriften
188
Maps
187
Périodiques
185
Academic theses
184
Périodiques
184
Databases
183
Congrès
182
Electronic book
177
Fiction
171
Aufsatzsammlung
154
Correspondence
153
Legislative histories
135
Photographs
135
periodicals
132
Exhibitions
130
more ...