Classification
330 - Economics
52
333 - Economics of land & energy
35
363 - Other social problems & services
18
338 - Production
11
307 - Communities
6
388 - Transportation; ground transportation
3
629 - Other branches of engineering
2
083 - Collections in other Germanic languages
1
304 - Factors affecting social behavior
1
332 - Financial economics
1
337 - International economics
1
339 - Macroeconomics & related topics
1
382 - International commerce
1
551 - Geology, hydrology & meteorology
1
657 - Accounting
1