Classification
900 - History & geography
330 - Economics
11
320 - Political science
9
300 - Social sciences
2
333 - Economics of land & energy
2
700 - The arts; fine & decorative arts
2
140 - Specific philosophical schools
1
200 - Religion
1
297 - Islam, Babism & Bahai Faith
1
301 - Sociology & anthropology
1
303 - Social processes
1
340 - Law
1
363 - Other social problems & services
1
370 - Education
1
380 - Commerce, communications & transportation
1
610 - Medicine & health
1
620 - Engineering & allied operations
1
720 - Architecture
1
800 - Literature & rhetoric
1