Genre
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Periodicals
6
Personal correspondence
1
Problems and exercises
1
Problems, exercises, etc
1
Publishers' advertisements
1
Rules
1
Science films
2
Scientific atlases
1
Short films
2
Statistics
2
Technical reports
5
Terminology
2
Textbooks
3
Trials, litigation, etc
1
Trivia and miscellanea
1
Wall charts
1
atlases
1
handbooks
1