Classification
410 - Linguistics
400 - Language
16
320 - Political science
13
380 - Commerce, communications & transportation
11
900 - History & geography
11
700 - The arts; fine & decorative arts
10
140 - Specific philosophical schools
8
330 - Economics
8
370 - Education
8
333 - Economics of land & energy
7
610 - Medicine & health
7
000 - Computer science, information & general works
6
100 - Philosophy & psychology
5
363 - Other social problems & services
5
600 - Technology
5
300 - Social sciences
4
800 - Literature & rhetoric
4
304 - Factors affecting social behavior
3
340 - Law
3
620 - Engineering & allied operations
3
780 - Music
3
170 - Ethics
2
200 - Religion
2
301 - Sociology & anthropology
2
414 - Phonology & phonetics
2
120 - Epistemology, causation & humankind
1
297 - Islam, Babism & Bahai Faith
1
551 - Geology, hydrology & meteorology
1
576 - Genetics & evolution
1
580 - Plants (Botany)
1
630 - Agriculture & related technologies
1
658 - General management
1