Classification
200 - Religion
330 - Economics
340 - Law
2
100 - Philosophy & psychology
1
140 - Specific philosophical schools
1
170 - Ethics
1
361 - Social problems & social welfare in general
1
610 - Medicine & health
1
650 - Management & auxiliary services
1
700 - The arts; fine & decorative arts
1
900 - History & geography
1