Classification
320 - Political science
000 - Computer science, information & general works
3
600 - Technology
3
300 - Social sciences
2
333 - Economics of land & energy
2
340 - Law
2
551 - Geology, hydrology & meteorology
2
700 - The arts; fine & decorative arts
2
100 - Philosophy & psychology
1
170 - Ethics
1
200 - Religion
1
301 - Sociology & anthropology
1
304 - Factors affecting social behavior
1
360 - Social problems & services; associations
1
361 - Social problems & social welfare in general
1
363 - Other social problems & services
1
364 - Criminology
1
380 - Commerce, communications & transportation
1
410 - Linguistics
1
610 - Medicine & health
1
800 - Literature & rhetoric
1
900 - History & geography
1