Classification
363 - Other social problems & services
580 - Plants (Botany)
610 - Medicine & health
000 - Computer science, information & general works
47
700 - The arts; fine & decorative arts
47
333 - Economics of land & energy
41
600 - Technology
30
140 - Specific philosophical schools
29
620 - Engineering & allied operations
29
330 - Economics
22
380 - Commerce, communications & transportation
22
630 - Agriculture & related technologies
21
551 - Geology, hydrology & meteorology
17
900 - History & geography
15
581 - Specific topics in natural history
14
540 - Chemistry & allied sciences
10
800 - Literature & rhetoric
9
576 - Genetics & evolution
7
720 - Architecture
7
414 - Phonology & phonetics
6
658 - General management
6
300 - Social sciences
5
340 - Law
5
500 - Natural sciences & mathematics
5
612 - Human physiology
5
304 - Factors affecting social behavior
4
320 - Political science
4
370 - Education
4
170 - Ethics
3
615 - Pharmacology & therapeutics
3
100 - Philosophy & psychology
2
400 - Language
2
520 - Astronomy & allied sciences
2
297 - Islam, Babism & Bahai Faith
1
530 - Physics
1
657 - Accounting
1