Genre
Textbooks
410
Statistics
146
Congresses
124
Case studies
47
Bibliography
41
Handbooks, manuals, etc
31
Juvenile literature
18
Census, 10th, 1880
14
Census, 1860
14
Census, 1880
14
Census, 8th, 1860
14
Census, 1870
13
Census, 9th, 1870
13
Sources
13
Census, 1840
12
Census, 1850
12
Census, 6th, 1840
12
Census, 7th, 1850
12
Electronic books
12
Biography
11
Dictionaries
10
Laboratory manuals
10
Catalogs
8
Directories
7
Genealogy
6
Indexes
5
Maps
5
Problems, exercises, etc
4
Census
3
Codes
3
Designs and plans
3
Periodicals
3
Archives
2
Census, 1861
2
Early works to 1800
2
Exhibitions
2
Forms
2
Microform catalogs
2
Outlines, syllabi, etc
2
Statistiques
2
Abstracts
1
Addresses to agricultural societies
1
Amateurs' manuals
1
Anecdotes
1
Bibliographies
1
Bio-bibliography
1
Cases
1
Census, 1875
1
Census, 1990
1
Census, 2013
1
more ...