Classification
900 - History & geography
1,141
820 - English & Old English literatures
472
320 - Political science
292
330 - Economics
274
340 - Law
198
700 - The arts; fine & decorative arts
178
300 - Social sciences
152
610 - Medicine & health
124
370 - Education
119
800 - Literature & rhetoric
118
100 - Philosophy & psychology
105
501 - Philosophy & theory
83
140 - Specific philosophical schools
81
940 - History of Europe
80
510 - Mathematics
77
930 - History of ancient world to ca. 499
75
200 - Religion
74
306 - Culture & institutions
68
301 - Sociology & anthropology
67
972 - Middle America; Mexico
54
400 - Language
51
304 - Factors affecting social behavior
47
509 - Historical, geographic & persons treatment
46
305 - Social groups
45
338 - Production
45
520 - Astronomy & allied sciences
43
530 - Physics
41
270 - History of Christianity & Christian church
40
000 - Computer science, information & general works
38
600 - Technology
38
620 - Engineering & allied operations
37
658 - General management
37
410 - Linguistics
36
500 - Natural sciences & mathematics
36
327 - International relations
35
720 - Architecture
35
333 - Economics of land & energy
34
363 - Other social problems & services
33
380 - Commerce, communications & transportation
33
780 - Music
31
576 - Genetics & evolution
30
616 - Diseases
30
907 - Education, research & related topics
29
004 - Data processing & computer science
28
630 - Agriculture & related technologies
27
010 - Bibliography
24
170 - Ethics
23
331 - Labor economics
23
809 - History, description & criticism
23
909 - World history
23
more ...