Classification
330 - Economics
27
320 - Political science
22
551 - Geology, hydrology & meteorology
11
333 - Economics of land & energy
8
370 - Education
8
700 - The arts; fine & decorative arts
8
900 - History & geography
8
577 - Ecology
6
910 - Geography & travel
6
300 - Social sciences
5
306 - Culture & institutions
5
307 - Communities
4
331 - Labor economics
4
340 - Law
4
380 - Commerce, communications & transportation
4
610 - Medicine & health
4
658 - General management
4
006 - Special computer methods
3
303 - Social processes
3
418 - Standard usage & applied linguistics
3
100 - Philosophy & psychology
2
158 - Applied psychology
2
297 - Islam, Babism & Bahai Faith
2
304 - Factors affecting social behavior
2
305 - Social groups
2
338 - Production
2
341 - Law of nations
2
361 - Social problems & social welfare in general
2
363 - Other social problems & services
2
364 - Criminology
2
378 - Higher education
2
519 - Probabilities & applied mathematics
2
550 - Earth sciences
2
576 - Genetics & evolution
2
600 - Technology
2
616 - Diseases
2
720 - Architecture
2
808 - Rhetoric & collections of literature
2
821 - English poetry
2
930 - History of ancient world to ca. 499
2
994 - Australia
2
995 - Melanesia; New Guinea
2
000 - Computer science, information & general works
1
003 - Systems
1
005 - Computer programming, programs & data
1
070 - News media, journalism & publishing
1
140 - Specific philosophical schools
1
170 - Ethics
1
174 - Occupational ethics
1
192 - Philosophy of British Isles
1
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