Classification
330 - Economics
237
820 - English & Old English literatures
176
610 - Medicine & health
155
658 - General management
132
700 - The arts; fine & decorative arts
116
620 - Engineering & allied operations
110
005 - Computer programming, programs & data
108
363 - Other social problems & services
90
600 - Technology
90
333 - Economics of land & energy
89
000 - Computer science, information & general works
83
616 - Diseases
77
580 - Plants (Botany)
69
004 - Data processing & computer science
66
900 - History & geography
64
577 - Ecology
62
780 - Music
59
500 - Natural sciences & mathematics
58
520 - Astronomy & allied sciences
58
304 - Factors affecting social behavior
57
551 - Geology, hydrology & meteorology
56
331 - Labor economics
54
320 - Political science
52
571 - Physiology & related subjects
48
621 - Applied physics
48
006 - Special computer methods
47
300 - Social sciences
42
338 - Production
41
572 - Biochemistry
41
340 - Law
40
800 - Literature & rhetoric
40
530 - Physics
39
540 - Chemistry & allied sciences
38
650 - Management & auxiliary services
36
302 - Social interaction
32
380 - Commerce, communications & transportation
31
001 - Knowledge
24
630 - Agriculture & related technologies
24
910 - Geography & travel
24
617 - Surgery & related medical specialties
23
140 - Specific philosophical schools
22
576 - Genetics & evolution
22
158 - Applied psychology
21
332 - Financial economics
21
301 - Sociology & anthropology
20
306 - Culture & institutions
18
745 - Decorative arts
18
305 - Social groups
17
612 - Human physiology
17
770 - Photography, photographs & computer art
17
more ...