Classification
700 - The arts; fine & decorative arts
274
333 - Economics of land & energy
269
000 - Computer science, information & general works
227
600 - Technology
221
363 - Other social problems & services
165
620 - Engineering & allied operations
162
900 - History & geography
141
610 - Medicine & health
125
330 - Economics
122
380 - Commerce, communications & transportation
120
320 - Political science
89
140 - Specific philosophical schools
83
576 - Genetics & evolution
74
540 - Chemistry & allied sciences
72
551 - Geology, hydrology & meteorology
55
530 - Physics
54
580 - Plants (Botany)
51
340 - Law
42
370 - Education
41
500 - Natural sciences & mathematics
35
304 - Factors affecting social behavior
33
630 - Agriculture & related technologies
30
414 - Phonology & phonetics
28
300 - Social sciences
26
720 - Architecture
25
581 - Specific topics in natural history
24
800 - Literature & rhetoric
16
100 - Philosophy & psychology
15
658 - General management
14
400 - Language
12
410 - Linguistics
11
612 - Human physiology
8
200 - Religion
7
361 - Social problems & social welfare in general
7
301 - Sociology & anthropology
6
170 - Ethics
5
657 - Accounting
5
120 - Epistemology, causation & humankind
3
297 - Islam, Babism & Bahai Faith
3
360 - Social problems & services; associations
3
615 - Pharmacology & therapeutics
3
780 - Music
3
364 - Criminology
2
160 - Logic
1
336 - Public finance
1
520 - Astronomy & allied sciences
1
550 - Earth sciences
1
650 - Management & auxiliary services
1
770 - Photography, photographs & computer art
1
791 - Public performances
1