Classification
330 - Economics
314
320 - Political science
226
820 - English & Old English literatures
167
900 - History & geography
146
300 - Social sciences
103
333 - Economics of land & energy
83
200 - Religion
82
006 - Special computer methods
81
616 - Diseases
81
610 - Medicine & health
79
340 - Law
75
370 - Education
70
363 - Other social problems & services
64
304 - Factors affecting social behavior
63
005 - Computer programming, programs & data
62
933 - Palestine to 70
62
515 - Analysis
61
296 - Judaism
54
600 - Technology
50
004 - Data processing & computer science
49
306 - Culture & institutions
49
780 - Music
49
940 - History of Europe
49
658 - General management
45
336 - Public finance
40
577 - Ecology
38
621 - Applied physics
36
571 - Physiology & related subjects
35
700 - The arts; fine & decorative arts
35
327 - International relations
34
551 - Geology, hydrology & meteorology
34
301 - Sociology & anthropology
33
500 - Natural sciences & mathematics
33
305 - Social groups
32
530 - Physics
32
338 - Production
31
620 - Engineering & allied operations
30
510 - Mathematics
27
956 - Middle East (Near East)
26
100 - Philosophy & psychology
25
001 - Knowledge
24
572 - Biochemistry
24
630 - Agriculture & related technologies
24
910 - Geography & travel
23
380 - Commerce, communications & transportation
22
541 - Physical chemistry
22
930 - History of ancient world to ca. 499
17
155 - Differential & developmental psychology
16
230 - Christianity & Christian theology
16
297 - Islam, Babism & Bahai Faith
16
more ...