Classification
380 - Commerce, communications & transportation
900 - History & geography
301 - Sociology & anthropology
2
200 - Religion
1
297 - Islam, Babism & Bahai Faith
1
300 - Social sciences
1
333 - Economics of land & energy
1
400 - Language
1
600 - Technology
1
620 - Engineering & allied operations
1
800 - Literature & rhetoric
1