Classification
333 - Economics of land & energy
700 - The arts; fine & decorative arts
6
800 - Literature & rhetoric
363 - Other social problems & services
4
200 - Religion
3
900 - History & geography
3
000 - Computer science, information & general works
2
100 - Philosophy & psychology
2
140 - Specific philosophical schools
2
320 - Political science
2
330 - Economics
2
410 - Linguistics
2
600 - Technology
2
770 - Photography, photographs & computer art
2
120 - Epistemology, causation & humankind
1
297 - Islam, Babism & Bahai Faith
1
300 - Social sciences
1
301 - Sociology & anthropology
1
370 - Education
1
400 - Language
1
500 - Natural sciences & mathematics
1
580 - Plants (Botany)
1
620 - Engineering & allied operations
1
791 - Public performances
1