Genre
Dictionaries
37
Encyclopedias
21
Handbooks and manuals
17
Periodicals
14
Biographies
13
Serial publications
6
Statistics
6
Directories
4
Registers (Lists)
2
Sources
2
Bibliographies
1
Calendars
1
Indexes
1
Literature
1
Reference works
1
Style manuals
1
Treaties
1
Trivia and miscellanea
1
Yearbooks
1