Classification
330 - Economics
320 - Political science
117
200 - Religion
71
900 - History & geography
21
160 - Logic
15
370 - Education
15
100 - Philosophy & psychology
14
300 - Social sciences
14
170 - Ethics
12
140 - Specific philosophical schools
7
340 - Law
6
301 - Sociology & anthropology
4
333 - Economics of land & energy
4
700 - The arts; fine & decorative arts
4
600 - Technology
3
800 - Literature & rhetoric
3
331 - Labor economics
2
363 - Other social problems & services
2
530 - Physics
2
576 - Genetics & evolution
2
581 - Specific topics in natural history
2
620 - Engineering & allied operations
2
658 - General management
2
201 - Religious mythology & social theology
1
236 - Eschatology
1
297 - Islam, Babism & Bahai Faith
1
302 - Social interaction
1
332 - Financial economics
1
338 - Production
1
361 - Social problems & social welfare in general
1
380 - Commerce, communications & transportation
1
400 - Language
1
410 - Linguistics
1
551 - Geology, hydrology & meteorology
1
610 - Medicine & health
1
630 - Agriculture & related technologies
1
920 - Biography, genealogy & insignia
1