Classification
200 - Religion
610 - Medicine & health
900 - History & geography
4
700 - The arts; fine & decorative arts
3
140 - Specific philosophical schools
2
320 - Political science
2
330 - Economics
2
370 - Education
2
333 - Economics of land & energy
1
340 - Law
1
360 - Social problems & services; associations
1
380 - Commerce, communications & transportation
1
720 - Architecture
1