Genre
Periodicals
229
Congresses
49
Electronic books
20
Newspapers
15
Early works to 1800
11
Sources
10
Juvenile literature
8
Textbooks
8
Statistics
7
Tables
7
Classification
5
Maps
5
Charts, diagrams, etc
4
Directories
4
Guidebooks
4
Bibliography
3
Early accounts to 1600
3
Juvenile fiction
3
Observations
3
Archives
2
Biography
2
Catalogs
2
Catalogs and collections
2
Electronic journals
2
Poetry
2
Popular works
2
Songs and music
2
Timetables
2
Abstracts
1
Aufsatzsammlung
1
Databases
1
Dictionaries
1
Early works to 1850
1
Exhibitions
1
Fiction
1
Folklore
1
Glossaries, vocabularies, etc
1
Handbooks, manuals, etc
1
History
1
Indexes
1
Librettos
1
Nomenclature (Popular)
1
Online resources
1
Personal narratives
1
Personal narratives, American
1
Pictorial works
1
Prayer-books and devotions
1
Périodiques
1
Records and correspondence
1
Statistiques
1
more ...