Genre
Maps
4,532
History
1,996
Congresses
1,198
Electronic books
1,196
Conference papers and proceedings
863
Periodicals
840
Legislative materials
500
Thematic maps
461
Statistics
450
Bibliography
378
Case studies
371
Classification
344
Internet videos
344
Educational films
220
Cases
183
Statutes and codes
182
Trials, litigation, etc
176
Legislative histories
160
Bibliographies
158
Sources
155
Academic theses
144
Early works to 1800
141
Pictorial works
107
Thèses et écrits académiques
106
Documentary films
102
Cadastral maps
98
Handbooks, manuals, etc
89
Legislative hearings
89
Facsimiles
88
Manuscript maps
85
Dictionaries
76
Government publications
73
Radio news programs
70
Remote-sensing maps
68
Topographic maps
67
Atlases
66
Databases
66
Video recordings
63
Biography
61
dissertations
57
Nonfiction films
53
Academic Dissertation
52
CD-ROMs
52
Early works
52
Handbooks and manuals
52
theses
49
Catalogs
48
Geographic information systems data
47
doctoral dissertations
47
masters theses
47
more ...