流派
Periodicals
175
Statistics
100
Directories
79
Congresses
40
Census, 1840
12
Census, 6th, 1840
12
Exhibitions
10
Textbooks
9
Electronic books
6
Case studies
5
Census, 10th, 1880
4
Census, 1880
4
Sources
4
Yearbooks
4
Abstracts
3
Catalogs
3
Census
3
Statistiques
3
Bibliography
2
Census, 1850
2
Census, 1860
2
Census, 1870
2
Census, 7th, 1850
2
Census, 8th, 1860
2
Census, 9th, 1870
2
Tables
2
Trials, litigation, etc
2
Archives
1
Bibliographies
1
Biography
1
Cases
1
Census, 1848
1
Classification
1
Conference papers and proceedings
1
Early works to 1800
1
Electronic book
1
Genealogy
1
Glossaries, vocabularies, etc
1
Job descriptions
1
Juvenile fiction
1
Juvenile literature
1
Registers
1
Statistics, Vital
1
Tables (Data)
1
Telephone directories
1
Yellow pages
1