Classification
000 - Computer science, information & general works
320 - Political science
330 - Economics
370 - Education
333 - Economics of land & energy
14
600 - Technology
11
700 - The arts; fine & decorative arts
11
380 - Commerce, communications & transportation
10
363 - Other social problems & services
8
900 - History & geography
7
551 - Geology, hydrology & meteorology
6
140 - Specific philosophical schools
4
610 - Medicine & health
4
620 - Engineering & allied operations
4
630 - Agriculture & related technologies
4
300 - Social sciences
3
581 - Specific topics in natural history
3
658 - General management
3
400 - Language
2
576 - Genetics & evolution
2
720 - Architecture
2
100 - Philosophy & psychology
1
170 - Ethics
1
297 - Islam, Babism & Bahai Faith
1
304 - Factors affecting social behavior
1
340 - Law
1
410 - Linguistics
1
414 - Phonology & phonetics
1
500 - Natural sciences & mathematics
1
530 - Physics
1
550 - Earth sciences
1
657 - Accounting
1
780 - Music
1