Genre
Periodicals
68
Sources
52
Textbooks
30
Early works to 1800
10
Congresses
5
Dictionaries
3
Handbooks, manuals, etc
3
Problems, exercises, etc
2
Périodiques
2
Anecdotes
1
Designs and plans
1
Examinations, questions, etc
1
Exhibitions
1
Guidebooks
1
Juvenile fiction
1
Juvenile literature
1
Ṕeriodiques
1