Classification
330 - Economics
3
363 - Other social problems & services
380 - Commerce, communications & transportation
2
500 - Natural sciences & mathematics
2
600 - Technology
2
610 - Medicine & health
2
333 - Economics of land & energy
1
615 - Pharmacology & therapeutics
1
620 - Engineering & allied operations
1
658 - General management
1
700 - The arts; fine & decorative arts
1