Classification
610 - Medicine & health
5
004 - Data processing & computer science
4
005 - Computer programming, programs & data
4
371 - Schools & their activities; special education
4
327 - International relations
2
331 - Labor economics
2
364 - Criminology
2
531 - Classical mechanics; solid mechanics
2
006 - Special computer methods
1
155 - Differential & developmental psychology
1
160 - Logic
1
218 - Humankind
1
300 - Social sciences
1
301 - Sociology & anthropology
1
304 - Factors affecting social behavior
1
306 - Culture & institutions
1
320 - Political science
1
330 - Economics
1
332 - Financial economics
1
341 - Law of nations
1
363 - Other social problems & services
1
374 - Adult education
1
418 - Standard usage & applied linguistics
1
516 - Geometry
1
518 - Numerical analysis
1
520 - Astronomy & allied sciences
1
530 - Physics
1
577 - Ecology
1
621 - Applied physics
1
670 - Manufacturing
1
941 - British Isles
1
980 - History of South America
1