Classification
610 - Medicine & health
620 - Engineering & allied operations
600 - Technology
311
700 - The arts; fine & decorative arts
220
900 - History & geography
191
333 - Economics of land & energy
138
000 - Computer science, information & general works
111
363 - Other social problems & services
106
580 - Plants (Botany)
96
630 - Agriculture & related technologies
72
140 - Specific philosophical schools
70
330 - Economics
63
380 - Commerce, communications & transportation
51
540 - Chemistry & allied sciences
36
576 - Genetics & evolution
32
370 - Education
24
500 - Natural sciences & mathematics
24
720 - Architecture
23
551 - Geology, hydrology & meteorology
22
100 - Philosophy & psychology
21
414 - Phonology & phonetics
21
320 - Political science
16
170 - Ethics
13
300 - Social sciences
13
581 - Specific topics in natural history
12
658 - General management
12
340 - Law
11
400 - Language
11
612 - Human physiology
11
800 - Literature & rhetoric
9
304 - Factors affecting social behavior
8
615 - Pharmacology & therapeutics
8
410 - Linguistics
7
530 - Physics
7
361 - Social problems & social welfare in general
5
301 - Sociology & anthropology
3
657 - Accounting
3
780 - Music
3
297 - Islam, Babism & Bahai Faith
2
120 - Epistemology, causation & humankind
1
200 - Religion
1
360 - Social problems & services; associations
1
364 - Criminology
1
590 - Animals (Zoology)
1
791 - Public performances
1