Classification
600 - Technology
610 - Medicine & health
13
700 - The arts; fine & decorative arts
13
000 - Computer science, information & general works
7
363 - Other social problems & services
6
140 - Specific philosophical schools
5
380 - Commerce, communications & transportation
4
320 - Political science
3
200 - Religion
2
300 - Social sciences
2
340 - Law
2
361 - Social problems & social welfare in general
2
414 - Phonology & phonetics
2
581 - Specific topics in natural history
2
900 - History & geography
2
170 - Ethics
1
301 - Sociology & anthropology
1
304 - Factors affecting social behavior
1
540 - Chemistry & allied sciences
1
576 - Genetics & evolution
1
620 - Engineering & allied operations
1