Classification
610 - Medicine & health
900 - History & geography
28
300 - Social sciences
4
320 - Political science
3
100 - Philosophy & psychology
2
140 - Specific philosophical schools
2
370 - Education
2
170 - Ethics
1
200 - Religion
1
330 - Economics
1
333 - Economics of land & energy
1
380 - Commerce, communications & transportation
1
500 - Natural sciences & mathematics
1
551 - Geology, hydrology & meteorology
1
576 - Genetics & evolution
1
580 - Plants (Botany)
1
581 - Specific topics in natural history
1
600 - Technology
1
700 - The arts; fine & decorative arts
1
791 - Public performances
1