Classification
000 - Computer science, information & general works
140 - Specific philosophical schools
320 - Political science
330 - Economics
370 - Education
380 - Commerce, communications & transportation
333 - Economics of land & energy
2
363 - Other social problems & services
2
551 - Geology, hydrology & meteorology
2
700 - The arts; fine & decorative arts
2
297 - Islam, Babism & Bahai Faith
1
414 - Phonology & phonetics
1
576 - Genetics & evolution
1
581 - Specific topics in natural history
1
600 - Technology
1
658 - General management
1
720 - Architecture
1
900 - History & geography
1