Classification
330 - Economics
148
000 - Computer science, information & general works
130
700 - The arts; fine & decorative arts
120
600 - Technology
89
333 - Economics of land & energy
81
363 - Other social problems & services
80
900 - History & geography
77
610 - Medicine & health
59
620 - Engineering & allied operations
58
140 - Specific philosophical schools
46
580 - Plants (Botany)
46
380 - Commerce, communications & transportation
39
551 - Geology, hydrology & meteorology
39
320 - Political science
32
576 - Genetics & evolution
29
500 - Natural sciences & mathematics
19
630 - Agriculture & related technologies
18
100 - Philosophy & psychology
17
658 - General management
16
340 - Law
15
581 - Specific topics in natural history
14
304 - Factors affecting social behavior
13
370 - Education
13
400 - Language
11
720 - Architecture
11
530 - Physics
10
800 - Literature & rhetoric
10
300 - Social sciences
9
414 - Phonology & phonetics
9
820 - English & Old English literatures
9
200 - Religion
8
540 - Chemistry & allied sciences
7
410 - Linguistics
6
612 - Human physiology
6
280 - Christian denominations & sects
5
301 - Sociology & anthropology
5
415 - Grammar
5
550 - Earth sciences
5
170 - Ethics
4
005 - Computer programming, programs & data
3
361 - Social problems & social welfare in general
3
791 - Public performances
3
491 - East Indo-European & Celtic languages
2
510 - Mathematics
2
650 - Management & auxiliary services
2
770 - Photography, photographs & computer art
2
780 - Music
2
001 - Knowledge
1
006 - Special computer methods
1
115 - Time
1
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