Classification
330 - Economics
363 - Other social problems & services
2
551 - Geology, hydrology & meteorology
600 - Technology
610 - Medicine & health
2
620 - Engineering & allied operations
2
700 - The arts; fine & decorative arts
2
320 - Political science
1
360 - Social problems & services; associations
1
630 - Agriculture & related technologies
1
900 - History & geography
1