Genre
Periodicals
67
Sources
21
Handbooks and manuals
19
Conference papers and proceedings
9
Registers (Lists)
8
Statistics
8
Directories
7
Treaties
5
Archives
3
Congresses
3
Indexes
3
Serial publications
3
Bibliographies
2
Catalogs
2
Correspondence
2
Personal correspondence
2
Case studies
1
Chronologies
1
Microform catalogs
1
Records (Documents)
1
Records and correspondence
1
Trivia and miscellanea
1