Classification
320 - Political science
4
363 - Other social problems & services
4
551 - Geology, hydrology & meteorology
4
600 - Technology
4
620 - Engineering & allied operations
4
900 - History & geography
4
330 - Economics
1
360 - Social problems & services; associations
1
610 - Medicine & health
1
700 - The arts; fine & decorative arts
1