Classification
900 - History & geography
29
340 - Law
20
800 - Literature & rhetoric
17
410 - Linguistics
15
400 - Language
9
300 - Social sciences
7
140 - Specific philosophical schools
5
780 - Music
5
414 - Phonology & phonetics
4
700 - The arts; fine & decorative arts
4
100 - Philosophy & psychology
1
200 - Religion
1
301 - Sociology & anthropology
1
304 - Factors affecting social behavior
1
320 - Political science
1
330 - Economics
1
380 - Commerce, communications & transportation
1