Classification
330 - Economics
76
333 - Economics of land & energy
25
363 - Other social problems & services
22
700 - The arts; fine & decorative arts
21
000 - Computer science, information & general works
18
320 - Political science
18
959 - Southeast Asia
18
610 - Medicine & health
14
600 - Technology
13
380 - Commerce, communications & transportation
10
900 - History & geography
10
140 - Specific philosophical schools
9
580 - Plants (Botany)
8
338 - Production
7
340 - Law
6
551 - Geology, hydrology & meteorology
6
304 - Factors affecting social behavior
5
370 - Education
5
658 - General management
5
200 - Religion
4
540 - Chemistry & allied sciences
4
800 - Literature & rhetoric
4
100 - Philosophy & psychology
3
297 - Islam, Babism & Bahai Faith
3
301 - Sociology & anthropology
3
355 - Military science
3
362 - Social welfare problems & services
3
500 - Natural sciences & mathematics
3
576 - Genetics & evolution
3
620 - Engineering & allied operations
3
303 - Social processes
2
341 - Law of nations
2
410 - Linguistics
2
581 - Specific topics in natural history
2
628 - Sanitary & municipal engineering
2
630 - Agriculture & related technologies
2
791 - Public performances
2
120 - Epistemology, causation & humankind
1
266 - Missions
1
300 - Social sciences
1
305 - Social groups
1
331 - Labor economics
1
336 - Public finance
1
342 - Constitutional & administrative law
1
345 - Criminal law
1
368 - Insurance
1
371 - Schools & their activities; special education
1
379 - Public policy issues in education
1
382 - International commerce
1
388 - Transportation; ground transportation
1
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