Classification
700 - The arts; fine & decorative arts
279
600 - Technology
234
900 - History & geography
194
333 - Economics of land & energy
185
620 - Engineering & allied operations
182
330 - Economics
172
000 - Computer science, information & general works
165
610 - Medicine & health
152
363 - Other social problems & services
132
100 - Philosophy & psychology
94
140 - Specific philosophical schools
91
380 - Commerce, communications & transportation
90
370 - Education
79
320 - Political science
72
500 - Natural sciences & mathematics
67
580 - Plants (Botany)
62
530 - Physics
56
540 - Chemistry & allied sciences
52
200 - Religion
47
300 - Social sciences
43
576 - Genetics & evolution
43
340 - Law
41
400 - Language
39
630 - Agriculture & related technologies
39
551 - Geology, hydrology & meteorology
38
658 - General management
34
800 - Literature & rhetoric
34
304 - Factors affecting social behavior
32
170 - Ethics
26
414 - Phonology & phonetics
25
720 - Architecture
25
745 - Decorative arts
20
780 - Music
20
301 - Sociology & anthropology
19
519 - Probabilities & applied mathematics
19
581 - Specific topics in natural history
18
410 - Linguistics
16
612 - Human physiology
16
240 - Christian moral & devotional theology
14
770 - Photography, photographs & computer art
14
120 - Epistemology, causation & humankind
13
621 - Applied physics
13
297 - Islam, Babism & Bahai Faith
10
520 - Astronomy & allied sciences
10
628 - Sanitary & municipal engineering
10
361 - Social problems & social welfare in general
9
510 - Mathematics
9
615 - Pharmacology & therapeutics
9
507 - Education, research & related topics
8
153 - Mental processes & intelligence
7
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