Genre
Case studies
9
Periodicals
7
Handbooks and manuals
6
Dictionaries
5
Directories
3
Video recordings
3
Biographies
2
Educational films
2
Internet videos
2
Legislative hearings
2
Personal correspondence
2
Records (Documents)
2
Records and correspondence
2
Academic theses
1
Bibliographies
1
Documentary films
1
Documentary television programs
1
Encyclopedias
1
Fiction
1
Nonfiction television programs
1
Problems and exercises
1
Serial publications
1
Statistics
1
Yearbooks
1