Classification
330 - Economics
817
320 - Political science
776
820 - English & Old English literatures
386
900 - History & geography
305
340 - Law
146
300 - Social sciences
128
576 - Genetics & evolution
72
380 - Commerce, communications & transportation
16
325 - International migration & colonization
13
940 - History of Europe
13
700 - The arts; fine & decorative arts
12
970 - History of North America
11
610 - Medicine & health
10
630 - Agriculture & related technologies
9
909 - World history
8
360 - Social problems & services; associations
5
260 - Social & ecclesiastical theology
4
327 - International relations
4
342 - Constitutional & administrative law
4
954 - South Asia; India
4
200 - Religion
3
306 - Culture & institutions
3
650 - Management & auxiliary services
3
840 - Literatures of Romance languages
3
941 - British Isles
3
305 - Social groups
2
349 - Law of specific jurisdictions & areas
2
362 - Social welfare problems & services
2
660 - Chemical engineering
2
810 - American literature in English
2
942 - England & Wales
2
956 - Middle East (Near East)
2
973 - United States
2
995 - Melanesia; New Guinea
2
072 - Newspapers in British Isles; in England
1
100 - Philosophy & psychology
1
120 - Epistemology, causation & humankind
1
140 - Specific philosophical schools
1
230 - Christianity & Christian theology
1
266 - Missions
1
280 - Christian denominations & sects
1
283 - Anglican churches
1
302 - Social interaction
1
336 - Public finance
1
343 - Military, tax, trade & industrial law
1
344 - Labor, social, education & cultural law
1
345 - Criminal law
1
346 - Private law
1
347 - Civil procedure & courts
1
355 - Military science
1
more ...