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