Classification
100 - Philosophy & psychology
330 - Economics
500 - Natural sciences & mathematics
300 - Social sciences
2
363 - Other social problems & services
2
658 - General management
2
170 - Ethics
1
320 - Political science
1
370 - Education
1
530 - Physics
1
540 - Chemistry & allied sciences
1
551 - Geology, hydrology & meteorology
1
576 - Genetics & evolution
1
600 - Technology
1
610 - Medicine & health
1
620 - Engineering & allied operations
1
700 - The arts; fine & decorative arts
1
720 - Architecture
1
900 - History & geography
1