Classification
330 - Economics
600 - Technology
300 - Social sciences
3
100 - Philosophy & psychology
1
170 - Ethics
1
301 - Sociology & anthropology
1
304 - Factors affecting social behavior
1
320 - Political science
1
333 - Economics of land & energy
1
370 - Education
1
500 - Natural sciences & mathematics
1
610 - Medicine & health
1
620 - Engineering & allied operations
1
700 - The arts; fine & decorative arts
1
780 - Music
1