Genre
Statistics
63
Directories
47
Periodicals
41
Census, 1840
12
Census, 6th, 1840
12
Exhibitions
8
Electronic books
4
Census
3
Census, 10th, 1880
3
Census, 1880
3
Census, 1850
2
Census, 1860
2
Census, 7th, 1850
2
Census, 8th, 1860
2
Congresses
2
Textbooks
2
Biography
1
Case studies
1
Census, 1848
1
Census, 1870
1
Census, 9th, 1870
1
Classification
1
Electronic book
1
Genealogy
1
Statistics, Vital
1
Statistiques
1
Telephone directories
1
Yellow pages
1