Classification
370 - Education
13
610 - Medicine & health
11
440 - Romance languages; French
10
930 - History of ancient world to ca. 499
9
519 - Probabilities & applied mathematics
6
530 - Physics
6
330 - Economics
5
540 - Chemistry & allied sciences
5
820 - English & Old English literatures
5
005 - Computer programming, programs & data
3
378 - Higher education
3
900 - History & geography
3
006 - Special computer methods
2
304 - Factors affecting social behavior
2
306 - Culture & institutions
2
320 - Political science
2
327 - International relations
2
501 - Philosophy & theory
2
510 - Mathematics
2
515 - Analysis
2
551 - Geology, hydrology & meteorology
2
070 - News media, journalism & publishing
1
100 - Philosophy & psychology
1
120 - Epistemology, causation & humankind
1
200 - Religion
1
230 - Christianity & Christian theology
1
280 - Christian denominations & sects
1
300 - Social sciences
1
301 - Sociology & anthropology
1
331 - Labor economics
1
332 - Financial economics
1
338 - Production
1
364 - Criminology
1
380 - Commerce, communications & transportation
1
384 - Communications; telecommunication
1
420 - English & Old English
1
500 - Natural sciences & mathematics
1
511 - General principles of mathematics
1
512 - Algebra
1
514 - Topology
1
531 - Classical mechanics; solid mechanics
1
534 - Sound & related vibrations
1
570 - Life sciences; biology
1
572 - Biochemistry
1
617 - Surgery & related medical specialties
1
621 - Applied physics
1
630 - Agriculture & related technologies
1
650 - Management & auxiliary services
1
651 - Office services
1
658 - General management
1
more ...