Classification
330 - Economics
3,411
610 - Medicine & health
6
362 - Social welfare problems & services
3
304 - Factors affecting social behavior
2
307 - Communities
2
333 - Economics of land & energy
2
338 - Production
2
380 - Commerce, communications & transportation
2
327 - International relations
1
332 - Financial economics
1
346 - Private law
1
363 - Other social problems & services
1
384 - Communications; telecommunication
1
616 - Diseases
1
658 - General management
1