Classification
100 - Philosophy & psychology
370 - Education
12
320 - Political science
9
700 - The arts; fine & decorative arts
8
330 - Economics
7
363 - Other social problems & services
7
610 - Medicine & health
7
900 - History & geography
7
200 - Religion
5
333 - Economics of land & energy
5
300 - Social sciences
4
000 - Computer science, information & general works
3
140 - Specific philosophical schools
3
170 - Ethics
3
340 - Law
3
361 - Social problems & social welfare in general
3
301 - Sociology & anthropology
2
380 - Commerce, communications & transportation
2
500 - Natural sciences & mathematics
2
600 - Technology
2
620 - Engineering & allied operations
2
780 - Music
2
304 - Factors affecting social behavior
1
350 - Public administration & military science
1
400 - Language
1
410 - Linguistics
1
540 - Chemistry & allied sciences
1
551 - Geology, hydrology & meteorology
1
576 - Genetics & evolution
1
630 - Agriculture & related technologies
1
658 - General management
1
770 - Photography, photographs & computer art
1
800 - Literature & rhetoric
1