Classification
000 - Computer science, information & general works
140 - Specific philosophical schools
700 - The arts; fine & decorative arts
209
610 - Medicine & health
176
600 - Technology
136
333 - Economics of land & energy
133
363 - Other social problems & services
106
330 - Economics
96
380 - Commerce, communications & transportation
88
900 - History & geography
71
620 - Engineering & allied operations
68
580 - Plants (Botany)
53
540 - Chemistry & allied sciences
52
551 - Geology, hydrology & meteorology
46
576 - Genetics & evolution
44
320 - Political science
43
370 - Education
39
500 - Natural sciences & mathematics
32
581 - Specific topics in natural history
29
400 - Language
28
658 - General management
26
800 - Literature & rhetoric
25
100 - Philosophy & psychology
24
630 - Agriculture & related technologies
22
300 - Social sciences
21
530 - Physics
21
340 - Law
20
720 - Architecture
19
304 - Factors affecting social behavior
18
410 - Linguistics
18
170 - Ethics
16
414 - Phonology & phonetics
15
200 - Religion
14
612 - Human physiology
14
301 - Sociology & anthropology
10
361 - Social problems & social welfare in general
8
615 - Pharmacology & therapeutics
8
120 - Epistemology, causation & humankind
6
780 - Music
6
657 - Accounting
3
770 - Photography, photographs & computer art
3
160 - Logic
2
297 - Islam, Babism & Bahai Faith
2
550 - Earth sciences
2
590 - Animals (Zoology)
2
398 - Folklore
1
791 - Public performances
1
920 - Biography, genealogy & insignia
1