Classification
000 - Computer science, information & general works
330 - Economics
409
333 - Economics of land & energy
261
363 - Other social problems & services
249
700 - The arts; fine & decorative arts
237
600 - Technology
185
380 - Commerce, communications & transportation
134
320 - Political science
126
610 - Medicine & health
98
620 - Engineering & allied operations
97
900 - History & geography
95
551 - Geology, hydrology & meteorology
88
140 - Specific philosophical schools
85
580 - Plants (Botany)
77
630 - Agriculture & related technologies
74
576 - Genetics & evolution
56
658 - General management
46
300 - Social sciences
43
500 - Natural sciences & mathematics
43
581 - Specific topics in natural history
36
340 - Law
35
540 - Chemistry & allied sciences
34
370 - Education
32
530 - Physics
28
800 - Literature & rhetoric
28
100 - Philosophy & psychology
27
720 - Architecture
27
414 - Phonology & phonetics
20
304 - Factors affecting social behavior
19
400 - Language
16
170 - Ethics
12
657 - Accounting
12
200 - Religion
11
410 - Linguistics
11
361 - Social problems & social welfare in general
10
301 - Sociology & anthropology
9
297 - Islam, Babism & Bahai Faith
6
612 - Human physiology
5
780 - Music
4
120 - Epistemology, causation & humankind
3
590 - Animals (Zoology)
3
615 - Pharmacology & therapeutics
3
160 - Logic
2
350 - Public administration & military science
2
520 - Astronomy & allied sciences
2
550 - Earth sciences
2
770 - Photography, photographs & computer art
2
791 - Public performances
2
336 - Public finance
1
650 - Management & auxiliary services
1