Žanr
Periodicals
13.688
History
13.314
Electronic books
9.799
Congresses
6.843
Conference papers and proceedings
5.003
Early works to 1800
4.799
Bibliography
4.599
Biography
2.906
Early works
2.410
Dictionaries
2.375
Biographies
1.922
Bibliographies
1.698
Juvenile literature
1.607
Catalogs
1.453
Internet videos
1.378
Periodical
1.282
Electronic journals
1.003
Educational films
970
Popular works
943
Directories
916
Statistics
906
Miscellanea
835
Juvenile works
772
Textbooks
697
Criticism, interpretation, etc
649
Instructional television programs
608
Indexes
596
Trivia and miscellanea
489
Handbooks, manuals, etc
484
Congress
482
Exhibitions
468
Terminology
439
Sources
437
Essays
433
Abstracts
416
Laboratory manuals
406
Documentary films
397
Encyclopedias
377
Festschriften
373
Handbooks and manuals
360
Video recordings
337
Périodiques
334
Laboratory Manual
321
Périodiques
316
Directory
315
Bio-bibliography
298
Exhibition catalogs
298
Congrès
291
Readers
284
Case studies
280
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