A - General Works 48,012
B - Philosophy, Psychology, Religion 59,731
C - Historical Sciences 24,741
D - World History 40,834
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G - Geography, Anthropology, Recreation 5,157
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M - Music 166,194
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P - Language and Literature 793,769
Q - Science 33,602
R - Medicine 45,606
S - Agriculture 15,414
T - Technology 16,600
U - Military Science 1,249
V - Naval Science 361
Z - Library Science 6,104