Classification
600 - Technology
620 - Engineering & allied operations
145
630 - Agriculture & related technologies
137
330 - Economics
116
333 - Economics of land & energy
113
700 - The arts; fine & decorative arts
110
363 - Other social problems & services
108
610 - Medicine & health
102
000 - Computer science, information & general works
86
580 - Plants (Botany)
78
900 - History & geography
57
320 - Political science
42
380 - Commerce, communications & transportation
35
551 - Geology, hydrology & meteorology
34
540 - Chemistry & allied sciences
31
140 - Specific philosophical schools
30
370 - Education
25
576 - Genetics & evolution
25
658 - General management
23
581 - Specific topics in natural history
22
304 - Factors affecting social behavior
15
500 - Natural sciences & mathematics
14
414 - Phonology & phonetics
11
100 - Philosophy & psychology
8
300 - Social sciences
7
340 - Law
7
720 - Architecture
7
400 - Language
6
800 - Literature & rhetoric
6
361 - Social problems & social welfare in general
5
410 - Linguistics
5
530 - Physics
3
657 - Accounting
3
170 - Ethics
2
297 - Islam, Babism & Bahai Faith
2
520 - Astronomy & allied sciences
2
615 - Pharmacology & therapeutics
2
780 - Music
2
200 - Religion
1
301 - Sociology & anthropology
1
336 - Public finance
1
338 - Production
1
360 - Social problems & services; associations
1
612 - Human physiology
1
629 - Other branches of engineering
1
664 - Food technology
1
791 - Public performances
1