A - General Works = "A - Algemene Werken"
B - Philosophy, Psychology, Religion = "B - Filosofie, Psychologie, Religie"
C - Historical Sciences = "C - Geschiedenis"
D - World History = "D - Wereld geschiedenis"
E - United States History = "E - Verenigde Staten Geschiedenis"
F - General American History = "F - Algemene Amerikaanse Geschiedenis"
G - Geography, Anthropology, Recreation = "G - Geografie, Antropologie, Vrije tijd"
H - Social Science = "H - Sociale Wetenschappen"
J - Political Science = "I - Politieke Wetenschappen"
K - Law = "K - Recht"
L - Education = "L - Pedagogische Wetenschappen"
M - Music = "M - Muziek"
N - Fine Arts = "N - Schone Kunsten"
P - Language and Literature = "P - Taal en Literatuur"
Q - Science = "Q - Wetenschap"
R - Medicine = "R - Geneeskunde"
S - Agriculture = "S - Landbouw"
T - Technology = "T - Technologie"
U - Military Science = "U - Militaire Wetenschappen"
V - Naval Science = "V - Zeemacht"
Z - Library Science = "Z - Bibliotheekwetenschappen"