Classification
370 - Education
33
900 - History & geography
22
540 - Chemistry & allied sciences
17
610 - Medicine & health
16
330 - Economics
13
333 - Economics of land & energy
12
340 - Law
11
700 - The arts; fine & decorative arts
11
320 - Political science
10
600 - Technology
10
820 - English & Old English literatures
10
140 - Specific philosophical schools
9
363 - Other social problems & services
6
100 - Philosophy & psychology
5
200 - Religion
5
380 - Commerce, communications & transportation
5
620 - Engineering & allied operations
5
000 - Computer science, information & general works
4
500 - Natural sciences & mathematics
4
300 - Social sciences
3
658 - General management
3
170 - Ethics
2
306 - Culture & institutions
2
378 - Higher education
2
400 - Language
2
410 - Linguistics
2
507 - Education, research & related topics
2
570 - Life sciences; biology
2
001 - Knowledge
1
120 - Epistemology, causation & humankind
1
153 - Mental processes & intelligence
1
250 - Christian orders & local church
1
301 - Sociology & anthropology
1
331 - Labor economics
1
338 - Production
1
360 - Social problems & services; associations
1
362 - Social welfare problems & services
1
530 - Physics
1
551 - Geology, hydrology & meteorology
1
576 - Genetics & evolution
1
615 - Pharmacology & therapeutics
1
630 - Agriculture & related technologies
1
660 - Chemical engineering
1
780 - Music
1
800 - Literature & rhetoric
1
920 - Biography, genealogy & insignia
1
938 - Greece to 323
1