शैली
Sources
65
Periodicals
64
Biography
11
Handbooks, manuals, etc
10
Bibliography
8
Archives
5
Microform catalogs
5
Academic theses
4
Cases
2
Electronic books
2
History
2
Indexes
2
Newspapers
2
Pictorial works
2
Statistics
2
dissertations
2
doctoral dissertations
2
masters theses
2
theses
2
Constitution
1
Diaries
1
Hochschulschrift
1
Pamphlets
1
Périodiques
1
Textbooks
1
Thèses et écrits académiques
1