Classification
140 - Specific philosophical schools
700 - The arts; fine & decorative arts
21
600 - Technology
16
610 - Medicine & health
16
330 - Economics
15
333 - Economics of land & energy
15
370 - Education
15
363 - Other social problems & services
13
380 - Commerce, communications & transportation
10
000 - Computer science, information & general works
9
320 - Political science
9
900 - History & geography
9
620 - Engineering & allied operations
8
800 - Literature & rhetoric
5
100 - Philosophy & psychology
4
170 - Ethics
4
300 - Social sciences
4
400 - Language
4
658 - General management
4
200 - Religion
3
581 - Specific topics in natural history
3
720 - Architecture
3
297 - Islam, Babism & Bahai Faith
2
301 - Sociology & anthropology
2
304 - Factors affecting social behavior
2
340 - Law
2
360 - Social problems & services; associations
2
576 - Genetics & evolution
2
630 - Agriculture & related technologies
2
361 - Social problems & social welfare in general
1
410 - Linguistics
1
500 - Natural sciences & mathematics
1
530 - Physics
1
540 - Chemistry & allied sciences
1
780 - Music
1
833 - German fiction
1