Genre
Video recordings
2,169
Conference papers and proceedings
2,156
Internet videos
2,059
Legislative hearings
2,029
Handbooks and manuals
866
Periodicals
790
Legislative materials
779
Bibliographies
455
Case studies
450
Technical reports
449
Instructional television programs
284
Maps
257
Statistics
227
Congresses
220
Academic theses
153
Statutes and codes
106
Dictionaries
100
Environmental impact statements
90
Nonfiction television programs
79
Software
77
Biographies
72
Directories
72
Databases
66
Treaties
42
Study guides
41
Educational films
40
Serial publications
35
Encyclopedias
33
Examinations
32
Festschriften
30
Thematic maps
30
Cross-cultural studies
27
Electronic government information
27
Catalogs
26
Geographic information systems
23
Documentary television programs
19
Film clips
19
Literature
18
Annual reports
17
Autobiographies
17
Personal correspondence
17
Records (Documents)
17
Activity books
16
Classification
16
Pictures
15
Trivia and miscellanea
14
CMU author
13
Problems and exercises
13
Interviews
12
Anecdotes
11
more ...