Carr, Robert K.
American democracy in theory and practice : essentials of national, state, and local government
Rinehart, 1957
Buku Teks
American government: issues and challenges of the 1980s / Robert M. Bigler ...[et al.]
Kendall/Hunt, 1982
Buku Teks
Bernstein, Marver H.
American democracy in theory and practice the national government
Holt, Rinehart and Winston, 1960
Buku Teks
Haynes, Robert J.
Organization theory and local government/ Robert J. Haynes
George Allen and Unwin, 1980
Buku Teks
State and local government
edited by Herbert L. Marx
H.W. Wilson, 1962
Buku Teks