Classification
600 - Technology
620 - Engineering & allied operations
72
700 - The arts; fine & decorative arts
72
333 - Economics of land & energy
65
330 - Economics
56
363 - Other social problems & services
55
900 - History & geography
52
610 - Medicine & health
34
000 - Computer science, information & general works
33
320 - Political science
30
380 - Commerce, communications & transportation
29
370 - Education
28
581 - Specific topics in natural history
16
140 - Specific philosophical schools
14
576 - Genetics & evolution
14
551 - Geology, hydrology & meteorology
12
720 - Architecture
12
340 - Law
11
580 - Plants (Botany)
11
100 - Philosophy & psychology
10
500 - Natural sciences & mathematics
10
630 - Agriculture & related technologies
10
400 - Language
5
540 - Chemistry & allied sciences
4
657 - Accounting
4
658 - General management
4
300 - Social sciences
3
301 - Sociology & anthropology
3
530 - Physics
3
410 - Linguistics
2
414 - Phonology & phonetics
2
800 - Literature & rhetoric
2
160 - Logic
1
170 - Ethics
1
200 - Religion
1
297 - Islam, Babism & Bahai Faith
1
304 - Factors affecting social behavior
1
336 - Public finance
1
615 - Pharmacology & therapeutics
1
616 - Diseases
1
780 - Music
1