Classification
610 - Medicine & health
225
700 - The arts; fine & decorative arts
100
600 - Technology
70
140 - Specific philosophical schools
61
000 - Computer science, information & general works
53
333 - Economics of land & energy
51
330 - Economics
46
380 - Commerce, communications & transportation
43
370 - Education
42
363 - Other social problems & services
35
620 - Engineering & allied operations
31
900 - History & geography
31
340 - Law
29
320 - Political science
25
100 - Philosophy & psychology
21
170 - Ethics
19
300 - Social sciences
16
580 - Plants (Botany)
16
304 - Factors affecting social behavior
15
400 - Language
15
658 - General management
14
576 - Genetics & evolution
12
500 - Natural sciences & mathematics
11
361 - Social problems & social welfare in general
7
551 - Geology, hydrology & meteorology
7
581 - Specific topics in natural history
7
200 - Religion
6
615 - Pharmacology & therapeutics
6
720 - Architecture
6
301 - Sociology & anthropology
5
410 - Linguistics
5
612 - Human physiology
4
350 - Public administration & military science
3
540 - Chemistry & allied sciences
3
630 - Agriculture & related technologies
3
800 - Literature & rhetoric
3
360 - Social problems & services; associations
2
530 - Physics
2
780 - Music
2
120 - Epistemology, causation & humankind
1
297 - Islam, Babism & Bahai Faith
1
364 - Criminology
1
414 - Phonology & phonetics
1
520 - Astronomy & allied sciences
1
550 - Earth sciences
1