Classification
003 - Systems
2
004 - Data processing & computer science
16
005 - Computer programming, programs & data
19
006 - Special computer methods
2
070 - News media, journalism & publishing
2
150 - Psychology
4
302 - Social interaction
14
306 - Culture & institutions
2
320 - Political science
1
330 - Economics
11
332 - Financial economics
9
333 - Economics of land & energy
1
336 - Public finance
1
338 - Production
1
339 - Macroeconomics & related topics
4
340 - Law
2
343 - Military, tax, trade & industrial law
4
346 - Private law
1
370 - Education
1
510 - Mathematics
2
511 - General principles of mathematics
3
512 - Algebra
3
514 - Topology
2
515 - Analysis
10
516 - Geometry
1
518 - Numerical analysis
4
519 - Probabilities & applied mathematics
11
610 - Medicine & health
4
613 - Personal health & safety
1
650 - Management & auxiliary services
13
657 - Accounting
6
658 - General management
30
659 - Advertising & public relations
3
780 - Music
1
808 - Rhetoric & collections of literature
1