Classification
300 - Social sciences
320 - Political science
363 - Other social problems & services
370 - Education
380 - Commerce, communications & transportation
000 - Computer science, information & general works
1
100 - Philosophy & psychology
1
200 - Religion
1
301 - Sociology & anthropology
1
304 - Factors affecting social behavior
1
330 - Economics
1
340 - Law
1
600 - Technology
1
700 - The arts; fine & decorative arts
1
900 - History & geography
1