Classification
304 - Factors affecting social behavior
410 - Linguistics
400 - Language
2
100 - Philosophy & psychology
1
140 - Specific philosophical schools
1
170 - Ethics
1
320 - Political science
1
370 - Education
1
380 - Commerce, communications & transportation
1
610 - Medicine & health
1
700 - The arts; fine & decorative arts
1
800 - Literature & rhetoric
1
900 - History & geography
1