Topogràfic
S - Agriculture
614
T - Technology
304
N - Fine Arts
3
C - Historical Sciences
2
G - Geography, Anthropology, Recreation
2
P - Language and Literature
2
A - Treballs generalss
1
B - Filosofia, Psicologia, Religió
1
E - United States History
1
F - General American History
1
L - Education
1
M - Music
1
R - Medicine
1