Classification
330 - Economics
10,870
320 - Political science
5,617
820 - English & Old English literatures
5,415
610 - Medicine & health
5,016
340 - Law
2,838
333 - Economics of land & energy
2,065
900 - History & geography
1,934
300 - Social sciences
1,614
370 - Education
1,365
363 - Other social problems & services
1,348
600 - Technology
1,258
304 - Factors affecting social behavior
1,156
338 - Production
906
658 - General management
896
700 - The arts; fine & decorative arts
839
616 - Diseases
756
620 - Engineering & allied operations
744
380 - Commerce, communications & transportation
728
306 - Culture & institutions
627
630 - Agriculture & related technologies
525
301 - Sociology & anthropology
503
910 - Geography & travel
475
621 - Applied physics
473
551 - Geology, hydrology & meteorology
454
341 - Law of nations
453
327 - International relations
450
940 - History of Europe
448
000 - Computer science, information & general works
435
800 - Literature & rhetoric
417
005 - Computer programming, programs & data
406
006 - Special computer methods
394
305 - Social groups
392
200 - Religion
387
140 - Specific philosophical schools
370
230 - Christianity & Christian theology
361
500 - Natural sciences & mathematics
355
280 - Christian denominations & sects
347
170 - Ethics
321
100 - Philosophy & psychology
310
240 - Christian moral & devotional theology
307
004 - Data processing & computer science
301
780 - Music
296
520 - Astronomy & allied sciences
294
577 - Ecology
288
250 - Christian orders & local church
280
331 - Labor economics
277
332 - Financial economics
253
360 - Social problems & services; associations
248
530 - Physics
231
650 - Management & auxiliary services
229
more ...