Classification
330 - Economics
320 - Political science
428
333 - Economics of land & energy
291
600 - Technology
284
363 - Other social problems & services
164
380 - Commerce, communications & transportation
124
304 - Factors affecting social behavior
76
610 - Medicine & health
76
336 - Public finance
45
630 - Agriculture & related technologies
43
370 - Education
36
658 - General management
3
338 - Production
2
005 - Computer programming, programs & data
1
300 - Social sciences
1
302 - Social interaction
1
331 - Labor economics
1
332 - Financial economics
1
381 - Commerce
1
500 - Natural sciences & mathematics
1
657 - Accounting
1
670 - Manufacturing
1
745 - Decorative arts
1