Classification
900 - History & geography
124
320 - Political science
88
400 - Language
74
333 - Economics of land & energy
47
304 - Factors affecting social behavior
36
700 - The arts; fine & decorative arts
36
301 - Sociology & anthropology
33
410 - Linguistics
33
363 - Other social problems & services
31
800 - Literature & rhetoric
31
414 - Phonology & phonetics
27
330 - Economics
25
398 - Folklore
25
551 - Geology, hydrology & meteorology
24
370 - Education
23
610 - Medicine & health
20
000 - Computer science, information & general works
16
780 - Music
15
300 - Social sciences
14
200 - Religion
12
581 - Specific topics in natural history
12
720 - Architecture
12
140 - Specific philosophical schools
11
380 - Commerce, communications & transportation
10
100 - Philosophy & psychology
6
580 - Plants (Botany)
5
340 - Law
4
600 - Technology
4
630 - Agriculture & related technologies
3
120 - Epistemology, causation & humankind
2
576 - Genetics & evolution
2
297 - Islam, Babism & Bahai Faith
1
336 - Public finance
1
350 - Public administration & military science
1
500 - Natural sciences & mathematics
1
520 - Astronomy & allied sciences
1
590 - Animals (Zoology)
1
620 - Engineering & allied operations
1
657 - Accounting
1
920 - Biography, genealogy & insignia
1