Classification
330 - Economics
332
320 - Political science
228
820 - English & Old English literatures
167
900 - History & geography
146
300 - Social sciences
104
006 - Special computer methods
88
333 - Economics of land & energy
83
200 - Religion
81
610 - Medicine & health
78
616 - Diseases
76
340 - Law
74
370 - Education
72
363 - Other social problems & services
64
304 - Factors affecting social behavior
63
933 - Palestine to 70
62
515 - Analysis
61
005 - Computer programming, programs & data
60
296 - Judaism
54
600 - Technology
50
780 - Music
49
940 - History of Europe
49
306 - Culture & institutions
48
658 - General management
45
336 - Public finance
40
577 - Ecology
40
571 - Physiology & related subjects
35
301 - Sociology & anthropology
34
327 - International relations
34
551 - Geology, hydrology & meteorology
34
700 - The arts; fine & decorative arts
34
621 - Applied physics
33
004 - Data processing & computer science
32
305 - Social groups
32
500 - Natural sciences & mathematics
32
530 - Physics
32
620 - Engineering & allied operations
30
338 - Production
29
001 - Knowledge
28
510 - Mathematics
27
956 - Middle East (Near East)
26
100 - Philosophy & psychology
24
572 - Biochemistry
24
630 - Agriculture & related technologies
24
910 - Geography & travel
24
380 - Commerce, communications & transportation
22
541 - Physical chemistry
22
040 - [Unassigned]
19
930 - History of ancient world to ca. 499
17
230 - Christianity & Christian theology
16
297 - Islam, Babism & Bahai Faith
16
more ...