Genre
Biography
906
Congresses
858
Bibliography
376
Periodicals
316
Problems, exercises, etc
214
Dictionaries
143
Classification
136
Sources
125
Bio-bibliography
105
Popular works
72
Textbooks for foreign speakers
68
Catalogs
64
Handbooks, manuals, etc
64
Maps
46
Correspondence
45
Tables
42
Folklore
41
Terminology
39
Texts
32
Atlases
31
Statistics
31
Early works to 1800
26
Nomenclature
22
Terms and phrases
21
Chronology
20
Fiction
20
Controversial literature
18
Guidebooks
18
Identification
17
Diaries
15
Poetry
15
Readers
15
Charts, diagrams, etc
14
Personal narratives, Russian
14
Case studies
13
Observations
13
Indexes
11
Literatures
11
Translations into Russian
10
Abstracts
8
Personal narratives
8
Catalogs and collections
7
Cross-cultural studies
7
History
7
congresses
7
Genealogy
6
Glossaries, vocabularies, etc
6
Laboratory manuals
6
Miscellanea
6
Observers' manuals
6
more ...