Classification
333 - Economics of land & energy
2
380 - Commerce, communications & transportation
2
600 - Technology
2
610 - Medicine & health
2
620 - Engineering & allied operations
658 - General management
700 - The arts; fine & decorative arts
900 - History & geography
2
330 - Economics
1
363 - Other social problems & services
1
370 - Education
1
720 - Architecture
1
800 - Literature & rhetoric
1