Classification
330 - Economics
1,488
320 - Political science
637
340 - Law
291
900 - History & geography
189
820 - English & Old English literatures
168
700 - The arts; fine & decorative arts
115
270 - History of Christianity & Christian church
105
200 - Religion
84
333 - Economics of land & energy
81
370 - Education
70
300 - Social sciences
61
610 - Medicine & health
51
600 - Technology
47
140 - Specific philosophical schools
34
000 - Computer science, information & general works
32
362 - Social welfare problems & services
30
363 - Other social problems & services
26
230 - Christianity & Christian theology
25
620 - Engineering & allied operations
25
576 - Genetics & evolution
24
100 - Philosophy & psychology
23
371 - Schools & their activities; special education
23
280 - Christian denominations & sects
20
380 - Commerce, communications & transportation
20
274 - History of Christianity in Europe
19
780 - Music
19
338 - Production
17
360 - Social problems & services; associations
17
800 - Literature & rhetoric
15
260 - Social & ecclesiastical theology
14
400 - Language
14
630 - Agriculture & related technologies
14
658 - General management
14
170 - Ethics
13
297 - Islam, Babism & Bahai Faith
13
379 - Public policy issues in education
13
500 - Natural sciences & mathematics
13
520 - Astronomy & allied sciences
13
540 - Chemistry & allied sciences
12
551 - Geology, hydrology & meteorology
12
304 - Factors affecting social behavior
11
361 - Social problems & social welfare in general
11
332 - Financial economics
10
350 - Public administration & military science
10
346 - Private law
9
410 - Linguistics
9
720 - Architecture
9
344 - Labor, social, education & cultural law
7
345 - Criminal law
7
580 - Plants (Botany)
7
more ...