Classification
340 - Law
610 - Medicine & health
700 - The arts; fine & decorative arts
140 - Specific philosophical schools
16
363 - Other social problems & services
16
600 - Technology
16
330 - Economics
13
000 - Computer science, information & general works
12
320 - Political science
9
333 - Economics of land & energy
9
380 - Commerce, communications & transportation
9
900 - History & geography
9
170 - Ethics
8
580 - Plants (Botany)
8
620 - Engineering & allied operations
7
630 - Agriculture & related technologies
7
200 - Religion
5
800 - Literature & rhetoric
5
300 - Social sciences
4
370 - Education
4
576 - Genetics & evolution
4
100 - Philosophy & psychology
3
301 - Sociology & anthropology
3
400 - Language
3
551 - Geology, hydrology & meteorology
3
581 - Specific topics in natural history
3
720 - Architecture
3
297 - Islam, Babism & Bahai Faith
2
304 - Factors affecting social behavior
2
540 - Chemistry & allied sciences
2
612 - Human physiology
2
350 - Public administration & military science
1
361 - Social problems & social welfare in general
1
410 - Linguistics
1
500 - Natural sciences & mathematics
1
530 - Physics
1
658 - General management
1