Classification
200 - Religion
900 - History & geography
4
100 - Philosophy & psychology
2
330 - Economics
2
370 - Education
2
170 - Ethics
1
300 - Social sciences
1
304 - Factors affecting social behavior
1
340 - Law
1
380 - Commerce, communications & transportation
1
400 - Language
1
700 - The arts; fine & decorative arts
1
920 - Biography, genealogy & insignia
1