Periodicals 18,665
Electronic books 13,772
Congresses 13,194
Conference papers and proceedings 9,818
History 7,835
Bibliography 4,535
Case studies 3,096
Directories 3,057
Handbooks, manuals, etc 2,210
Internet videos 2,166
Periodical 2,023
Electronic journals 1,889
Biography 1,841
Bibliographies 1,784
Congress 1,757
Statistics 1,661
Handbooks and manuals 1,436
Biographies 1,288
Abstracts 1,112
Educational films 868
Legislative hearings 830
Video recordings 710
Dictionaries 679
Directory 671
Criticism, interpretation, etc 656
Périodiques 633
Government publications 610
Interviews 593
Sources 586
Périodiques 557
Legislative materials 530
Aufsatzsammlung 508
Nonfiction television programs 481
Catalogs 480
Technical reports 480
Databases 459
Academic theses 448
Documentary films 429
Congrès 419
Cross-cultural studies 389
Legislative histories 387
Festschriften 375
Electronic book 370
Fiction 360
Indexes 360
periodicals 359
Observations 342
Congrès 331
Treaties 326
congresses 287
Computer network resources 281
Thèses et écrits académiques 269
Laboratory Manual 251
Laboratory manuals 249
Actes de congrès 247
Textbooks 247
Laboratory Manuals 220
Handbook 219
Radio news programs 215
Maps 212
Conference papers and proceedings 198
Correspondence 198
Exhibitions 193
Documentary television programs 192
Guides, manuels, etc 191
Essays 188
Oral histories (literary works) 182
Fulltext 181
Photographs 179
Nonfiction films 175
Études de cas 171
Longitudinal studies 171
Guides et manuels 167
Classification 166
Autobiographies 164
Academic Dissertation 161
Internet Resources 155
Lectures 155
Popular works 154
Feature films 145
Encyclopedias 140
Internet resource 139
Oral histories 139
dissertations 138
Serial publications 137
Early works to 1800 135
Exhibition catalogs 133
Pictorial works 133
Drama 126
Video recordings for the hearing impaired 126
CD-ROMs 118
doctoral dissertations 118
theses 118
masters theses 117
Kongress 115
bibliography 114
Legislation 113
Statistiques 111
Rules and practice 109
handbooks 108