Classification
160 - Logic
170 - Ethics
320 - Political science
6
330 - Economics
5
300 - Social sciences
3
900 - History & geography
3
100 - Philosophy & psychology
2
120 - Epistemology, causation & humankind
1
200 - Religion
1
230 - Christianity & Christian theology
1
301 - Sociology & anthropology
1
340 - Law
1
361 - Social problems & social welfare in general
1
370 - Education
1
400 - Language
1
410 - Linguistics
1
500 - Natural sciences & mathematics
1
520 - Astronomy & allied sciences
1
530 - Physics
1
800 - Literature & rhetoric
1