Classification
610 - Medicine & health
96
100 - Philosophy & psychology
26
700 - The arts; fine & decorative arts
15
333 - Economics of land & energy
13
000 - Computer science, information & general works
12
900 - History & geography
12
600 - Technology
9
612 - Human physiology
7
140 - Specific philosophical schools
5
330 - Economics
5
380 - Commerce, communications & transportation
5
615 - Pharmacology & therapeutics
5
363 - Other social problems & services
4
300 - Social sciences
3
301 - Sociology & anthropology
3
304 - Factors affecting social behavior
3
320 - Political science
3
340 - Law
3
361 - Social problems & social welfare in general
3
500 - Natural sciences & mathematics
3
540 - Chemistry & allied sciences
3
170 - Ethics
2
370 - Education
2
400 - Language
2
620 - Engineering & allied operations
2
800 - Literature & rhetoric
2
200 - Religion
1
551 - Geology, hydrology & meteorology
1
576 - Genetics & evolution
1
580 - Plants (Botany)
1
720 - Architecture
1