Classification
320 - Political science
464
330 - Economics
456
340 - Law
106
300 - Social sciences
100
900 - History & geography
61
658 - General management
32
630 - Agriculture & related technologies
21
650 - Management & auxiliary services
18
820 - English & Old English literatures
18
700 - The arts; fine & decorative arts
16
302 - Social interaction
15
301 - Sociology & anthropology
12
332 - Financial economics
11
610 - Medicine & health
11
620 - Engineering & allied operations
10
780 - Music
10
530 - Physics
9
616 - Diseases
9
830 - Literatures of Germanic languages
9
500 - Natural sciences & mathematics
7
306 - Culture & institutions
6
338 - Production
6
150 - Psychology
5
910 - Geography & travel
5
001 - Knowledge
4
100 - Philosophy & psychology
4
333 - Economics of land & energy
4
336 - Public finance
4
343 - Military, tax, trade & industrial law
4
346 - Private law
4
370 - Education
4
420 - English & Old English
4
617 - Surgery & related medical specialties
4
621 - Applied physics
4
657 - Accounting
4
006 - Special computer methods
3
200 - Religion
3
230 - Christianity & Christian theology
3
240 - Christian moral & devotional theology
3
501 - Philosophy & theory
3
550 - Earth sciences
3
576 - Genetics & evolution
3
614 - Incidence & prevention of disease
3
624 - Civil engineering
3
660 - Chemical engineering
3
690 - Buildings
3
004 - Data processing & computer science
2
005 - Computer programming, programs & data
2
140 - Specific philosophical schools
2
155 - Differential & developmental psychology
2
more ...