Classification
700 - The arts; fine & decorative arts
103
600 - Technology
81
900 - History & geography
79
620 - Engineering & allied operations
69
333 - Economics of land & energy
58
610 - Medicine & health
56
000 - Computer science, information & general works
45
330 - Economics
39
363 - Other social problems & services
35
320 - Political science
29
380 - Commerce, communications & transportation
29
580 - Plants (Botany)
29
140 - Specific philosophical schools
26
800 - Literature & rhetoric
15
370 - Education
13
340 - Law
12
576 - Genetics & evolution
12
820 - English & Old English literatures
12
500 - Natural sciences & mathematics
11
200 - Religion
10
400 - Language
10
720 - Architecture
10
260 - Social & ecclesiastical theology
9
100 - Philosophy & psychology
8
230 - Christianity & Christian theology
8
304 - Factors affecting social behavior
8
530 - Physics
8
540 - Chemistry & allied sciences
8
300 - Social sciences
7
551 - Geology, hydrology & meteorology
7
615 - Pharmacology & therapeutics
7
414 - Phonology & phonetics
6
612 - Human physiology
6
630 - Agriculture & related technologies
6
170 - Ethics
5
297 - Islam, Babism & Bahai Faith
4
410 - Linguistics
4
301 - Sociology & anthropology
3
658 - General management
3
390 - Customs, etiquette & folklore
2
520 - Astronomy & allied sciences
2
581 - Specific topics in natural history
2
650 - Management & auxiliary services
2
780 - Music
2
813 - American fiction in English
2
940 - History of Europe
2
001 - Knowledge
1
005 - Computer programming, programs & data
1
160 - Logic
1
171 - Ethical systems
1
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