Classification
200 - Religion
301 - Sociology & anthropology
400 - Language
300 - Social sciences
5
380 - Commerce, communications & transportation
4
900 - History & geography
4
100 - Philosophy & psychology
3
330 - Economics
3
297 - Islam, Babism & Bahai Faith
2
320 - Political science
2
340 - Law
2
398 - Folklore
2
410 - Linguistics
2
000 - Computer science, information & general works
1
120 - Epistemology, causation & humankind
1
333 - Economics of land & energy
1
363 - Other social problems & services
1
370 - Education
1
600 - Technology
1
700 - The arts; fine & decorative arts
1
800 - Literature & rhetoric
1