Classification
330 - Economics
93
332 - Financial economics
27
320 - Political science
6
333 - Economics of land & energy
6
900 - History & geography
3
000 - Computer science, information & general works
2
200 - Religion
2
339 - Macroeconomics & related topics
2
380 - Commerce, communications & transportation
2
700 - The arts; fine & decorative arts
2
170 - Ethics
1
300 - Social sciences
1
301 - Sociology & anthropology
1
331 - Labor economics
1
337 - International economics
1
338 - Production
1
340 - Law
1
363 - Other social problems & services
1
370 - Education
1
410 - Linguistics
1
610 - Medicine & health
1
658 - General management
1