Classification
000 - Computer science, information & general works
320 - Political science
330 - Economics
134
700 - The arts; fine & decorative arts
126
333 - Economics of land & energy
105
363 - Other social problems & services
88
380 - Commerce, communications & transportation
78
600 - Technology
77
551 - Geology, hydrology & meteorology
65
610 - Medicine & health
45
140 - Specific philosophical schools
40
900 - History & geography
35
620 - Engineering & allied operations
31
370 - Education
27
630 - Agriculture & related technologies
24
300 - Social sciences
21
340 - Law
21
581 - Specific topics in natural history
21
658 - General management
19
580 - Plants (Botany)
17
100 - Philosophy & psychology
15
576 - Genetics & evolution
15
500 - Natural sciences & mathematics
12
720 - Architecture
12
304 - Factors affecting social behavior
10
800 - Literature & rhetoric
9
170 - Ethics
8
361 - Social problems & social welfare in general
8
400 - Language
8
540 - Chemistry & allied sciences
8
530 - Physics
7
657 - Accounting
7
414 - Phonology & phonetics
6
200 - Religion
5
550 - Earth sciences
5
297 - Islam, Babism & Bahai Faith
4
301 - Sociology & anthropology
4
410 - Linguistics
4
520 - Astronomy & allied sciences
3
791 - Public performances
3
350 - Public administration & military science
2
360 - Social problems & services; associations
1
364 - Criminology
1
612 - Human physiology
1
615 - Pharmacology & therapeutics
1
650 - Management & auxiliary services
1
770 - Photography, photographs & computer art
1