Classification
320 - Political science
567
330 - Economics
700 - The arts; fine & decorative arts
900 - History & geography
84
340 - Law
56
300 - Social sciences
27
630 - Agriculture & related technologies
14
576 - Genetics & evolution
9
200 - Religion
6
600 - Technology
5
370 - Education
4
800 - Literature & rhetoric
4
140 - Specific philosophical schools
2
160 - Logic
2
170 - Ethics
2
266 - Missions
2
326 - Slavery & emancipation
1
337 - International economics
1
382 - International commerce
1