Genre
Periodicals
34
Sources
16
Newspapers
11
Maps
8
Biography
5
Congresses
5
Statistics
4
Bibliography
3
Treaties
2
Apologetic works
1
Case studies
1
Catalogs
1
Census, 1926
1
Census, 1959
1
Collections
1
Correspondence
1
Directories
1
Handbooks, manuals, etc
1
Personal narratives, Russian
1
Records and correspondence
1
Rules and practice
1
Union lists
1
Yearbooks
1