Classification
820 - English & Old English literatures
92
330 - Economics
65
320 - Political science
33
340 - Law
25
809 - History, description & criticism
13
300 - Social sciences
11
800 - Literature & rhetoric
10
900 - History & geography
9
301 - Sociology & anthropology
8
790 - Recreational & performing arts
6
792 - Stage presentations
6
700 - The arts; fine & decorative arts
5
100 - Philosophy & psychology
4
360 - Social problems & services; associations
4
380 - Commerce, communications & transportation
4
610 - Medicine & health
4
616 - Diseases
4
808 - Rhetoric & collections of literature
4
650 - Management & auxiliary services
3
780 - Music
3
004 - Data processing & computer science
2
005 - Computer programming, programs & data
2
200 - Religion
2
240 - Christian moral & devotional theology
2
250 - Christian orders & local church
2
304 - Factors affecting social behavior
2
331 - Labor economics
2
333 - Economics of land & energy
2
410 - Linguistics
2
519 - Probabilities & applied mathematics
2
620 - Engineering & allied operations
2
621 - Applied physics
2
630 - Agriculture & related technologies
2
940 - History of Europe
2
000 - Computer science, information & general works
1
030 - General encyclopedic works
1
110 - Metaphysics
1
140 - Specific philosophical schools
1
150 - Psychology
1
153 - Mental processes & intelligence
1
302 - Social interaction
1
306 - Culture & institutions
1
341 - Law of nations
1
350 - Public administration & military science
1
363 - Other social problems & services
1
418 - Standard usage & applied linguistics
1
430 - Germanic languages; German
1
500 - Natural sciences & mathematics
1
501 - Philosophy & theory
1
520 - Astronomy & allied sciences
1
more ...