Classification
100 - Philosophy & psychology
500 - Natural sciences & mathematics
610 - Medicine & health
363 - Other social problems & services
3
170 - Ethics
2
370 - Education
2
000 - Computer science, information & general works
1
300 - Social sciences
1
301 - Sociology & anthropology
1
320 - Political science
1
330 - Economics
1
340 - Law
1
361 - Social problems & social welfare in general
1
540 - Chemistry & allied sciences
1
600 - Technology
1
620 - Engineering & allied operations
1
700 - The arts; fine & decorative arts
1
780 - Music
1
900 - History & geography
1