Genre
Sources
42
Newspapers
30
Microform catalogs
23
Bibliography
22
Archives
15
Periodicals
12
History
5
Personal narratives, German
3
Pictorial works
3
Biography
2
Online resources
2
Cases
1
Congresses
1
Electronic books
1
Electronic government information
1
Personal narratives, Polish
1
Personal narratives, Russian
1
Records and correspondence
1
Registers
1
Registers of dead
1