Genre
Periodicals
74
Congresses
32
Early works to 1850
9
Sources
8
Bibliography
4
Catalogs
4
Dictionaries
4
Handbooks, manuals, etc
4
Statistics
4
Abstracts
3
Biography
3
Pamphlets
3
Archives
2
Catalogs and collections
2
Early works to 1800
2
Exhibitions
2
Trials, litigation, etc
2
Cases
1
Collections
1
Designs and plans
1
Directories
1
Maps
1
Mikroform
1
Registers
1
Software
1
Specifications
1
Surveys
1
Tables
1