Classification
363 - Other social problems & services
581 - Specific topics in natural history
330 - Economics
30
333 - Economics of land & energy
28
600 - Technology
22
630 - Agriculture & related technologies
20
620 - Engineering & allied operations
16
700 - The arts; fine & decorative arts
13
320 - Political science
12
000 - Computer science, information & general works
11
140 - Specific philosophical schools
11
900 - History & geography
8
380 - Commerce, communications & transportation
7
551 - Geology, hydrology & meteorology
7
610 - Medicine & health
7
340 - Law
5
576 - Genetics & evolution
5
580 - Plants (Botany)
4
200 - Religion
3
370 - Education
3
720 - Architecture
3
100 - Philosophy & psychology
2
300 - Social sciences
2
301 - Sociology & anthropology
2
400 - Language
2
414 - Phonology & phonetics
2
500 - Natural sciences & mathematics
2
540 - Chemistry & allied sciences
2
590 - Animals (Zoology)
2
658 - General management
2
800 - Literature & rhetoric
2
170 - Ethics
1
297 - Islam, Babism & Bahai Faith
1
304 - Factors affecting social behavior
1
350 - Public administration & military science
1
410 - Linguistics
1
530 - Physics
1
612 - Human physiology
1
657 - Accounting
1
780 - Music
1
791 - Public performances
1