JC - Political Theory 94,300
JQ - Europe 89,056
JX - International Law 73,257
JK - United States 67,227
JZ - International Relations 42,480
JS - Local and Municipal Government 37,832
JV - Colonization, Immigration 34,626
JA - Political Science 32,680
JL - Canada and Central America 32,424
JF - Public Administration 26,616
J - General Legislature 16,653
JJ - North America 34
B - Philosophy 1
DU - Oceania (South Seas) 1
Q - General Science 1
Z - Books and Writing 1