Genre
Periodicals
497
Observations
74
Statistics
18
Bibliography
16
Congresses
16
Maps
16
Abstracts
11
Charts, diagrams, etc
10
Périodiques
10
Catalogs and collections
6
Tables
5
Textbooks
5
Catalogs
4
Handbooks, manuals, etc
4
Laboratory manuals
4
Yearbooks
4
Classification
3
Dictionaries
3
Identification
3
Indexes
3
Exhibitions
2
Sources
2
Archives
1
Case studies
1
Congrès
1
Directories
1
Electronic book
1
Electronic books
1
Electronic texts
1
Online resources
1
Pictorial works
1
Radiosonde observations
1
Surveys
1
periodicals
1