Classification
340 - Law
363 - Other social problems & services
380 - Commerce, communications & transportation
700 - The arts; fine & decorative arts
600 - Technology
12
140 - Specific philosophical schools
10
620 - Engineering & allied operations
10
000 - Computer science, information & general works
8
900 - History & geography
8
320 - Political science
7
333 - Economics of land & energy
7
610 - Medicine & health
7
720 - Architecture
7
576 - Genetics & evolution
6
330 - Economics
5
300 - Social sciences
4
370 - Education
4
500 - Natural sciences & mathematics
4
580 - Plants (Botany)
4
200 - Religion
3
630 - Agriculture & related technologies
3
800 - Literature & rhetoric
3
170 - Ethics
2
301 - Sociology & anthropology
2
400 - Language
2
100 - Philosophy & psychology
1
297 - Islam, Babism & Bahai Faith
1
304 - Factors affecting social behavior
1
410 - Linguistics
1
530 - Physics
1
540 - Chemistry & allied sciences
1
551 - Geology, hydrology & meteorology
1