Classification
005 - Computer programming, programs & data
5
658 - General management
5
006 - Special computer methods
4
333 - Economics of land & energy
2
628 - Sanitary & municipal engineering
2
004 - Data processing & computer science
1
025 - Library operations
1
332 - Financial economics
1
346 - Private law
1
363 - Other social problems & services
1
577 - Ecology
1
599 - Mammals
1
636 - Animal husbandry
1
639 - Hunting, fishing & conservation
1