Genre
Periodicals
43
Statistics
37
Observations
28
Congresses
8
Conference papers and proceedings
6
Maps
5
Documentary films
4
Nonfiction films
4
Interviews
3
Video recordings
3
Cartes
2
Environmental films
2
Internet videos
2
Actes de congrès
1
Atlas
1
Charts, diagrams, etc
1
Congress
1
Congrès
1
Databases
1
Entretiens
1
Graphs
1
Illustrated works
1
Juvenile literature
1
Meteorological charts
1
Pictorial works
1
Technical reports
1
Videotapes
1