Classification
330 - Economics
540 - Chemistry & allied sciences
600 - Technology
620 - Engineering & allied operations
658 - General management
700 - The arts; fine & decorative arts
2
100 - Philosophy & psychology
1
300 - Social sciences
1
333 - Economics of land & energy
1
363 - Other social problems & services
1
370 - Education
1
380 - Commerce, communications & transportation
1
500 - Natural sciences & mathematics
1
530 - Physics
1
576 - Genetics & evolution
1
580 - Plants (Botany)
1
720 - Architecture
1
900 - History & geography
1