Classification
400 - Language
410 - Linguistics
491 - East Indo-European & Celtic languages
30
900 - History & geography
28
340 - Law
15
370 - Education
14
100 - Philosophy & psychology
12
700 - The arts; fine & decorative arts
10
297 - Islam, Babism & Bahai Faith
8
320 - Political science
8
800 - Literature & rhetoric
7
200 - Religion
5
414 - Phonology & phonetics
5
160 - Logic
3
330 - Economics
3
333 - Economics of land & energy
3
380 - Commerce, communications & transportation
3
304 - Factors affecting social behavior
2
435 - German grammar
2
437 - German language variations
2
808 - Rhetoric & collections of literature
2
891 - East Indo-European & Celtic literatures
2
121 - Epistemology
1
170 - Ethics
1
300 - Social sciences
1
301 - Sociology & anthropology
1
361 - Social problems & social welfare in general
1
401 - Philosophy & theory
1
415 - Grammar
1
430 - Germanic languages; German
1
480 - Hellenic languages; classical Greek
1
490 - Other languages
1
720 - Architecture
1
780 - Music
1
781 - General principles & musical forms
1
835 - German speeches
1