Classification
900 - History & geography
134
400 - Language
28
320 - Political science
25
700 - The arts; fine & decorative arts
21
300 - Social sciences
14
297 - Islam, Babism & Bahai Faith
12
330 - Economics
10
340 - Law
10
200 - Religion
6
301 - Sociology & anthropology
6
800 - Literature & rhetoric
6
780 - Music
5
140 - Specific philosophical schools
4
333 - Economics of land & energy
4
363 - Other social problems & services
4
410 - Linguistics
3
581 - Specific topics in natural history
3
610 - Medicine & health
3
920 - Biography, genealogy & insignia
3
000 - Computer science, information & general works
2
350 - Public administration & military science
2
380 - Commerce, communications & transportation
2
414 - Phonology & phonetics
2
620 - Engineering & allied operations
2
630 - Agriculture & related technologies
2
720 - Architecture
2
100 - Philosophy & psychology
1
296 - Judaism
1
304 - Factors affecting social behavior
1
370 - Education
1
500 - Natural sciences & mathematics
1
530 - Physics
1
600 - Technology
1