Classification
340 - Law
363 - Other social problems & services
620 - Engineering & allied operations
26
600 - Technology
25
900 - History & geography
16
380 - Commerce, communications & transportation
15
700 - The arts; fine & decorative arts
14
140 - Specific philosophical schools
10
333 - Economics of land & energy
10
000 - Computer science, information & general works
8
330 - Economics
8
720 - Architecture
7
500 - Natural sciences & mathematics
6
576 - Genetics & evolution
6
320 - Political science
5
370 - Education
5
580 - Plants (Botany)
5
610 - Medicine & health
5
630 - Agriculture & related technologies
5
300 - Social sciences
4
400 - Language
4
551 - Geology, hydrology & meteorology
3
800 - Literature & rhetoric
3
170 - Ethics
2
200 - Religion
2
540 - Chemistry & allied sciences
2
297 - Islam, Babism & Bahai Faith
1
301 - Sociology & anthropology
1
304 - Factors affecting social behavior
1
410 - Linguistics
1
581 - Specific topics in natural history
1
657 - Accounting
1