Classification
000 - Computer science, information & general works
100 - Philosophy & psychology
320 - Political science
363 - Other social problems & services
380 - Commerce, communications & transportation
300 - Social sciences
1
301 - Sociology & anthropology
1
340 - Law
1
370 - Education
1
551 - Geology, hydrology & meteorology
1
700 - The arts; fine & decorative arts
1