Classification
363 - Other social problems & services
576 - Genetics & evolution
600 - Technology
620 - Engineering & allied operations
900 - History & geography
2
320 - Political science
1
333 - Economics of land & energy
1
370 - Education
1
551 - Geology, hydrology & meteorology
1
610 - Medicine & health
1
700 - The arts; fine & decorative arts
1