Classification
330 - Economics
600 - Technology
3
620 - Engineering & allied operations
658 - General management
700 - The arts; fine & decorative arts
3
800 - Literature & rhetoric
333 - Economics of land & energy
2
363 - Other social problems & services
2
900 - History & geography
2
160 - Logic
1
370 - Education
1
380 - Commerce, communications & transportation
1
576 - Genetics & evolution
1
580 - Plants (Botany)
1
610 - Medicine & health
1