Community leaders of the world / Published The American Bibliographical Institute
The American Bibliographical Institute, 1986
 Buku Referensi
Penniman, Howard R.
The American political process
D. Van Nostrand, 1962
 Buku Teks
Edward, David V.
The American Political Experience
Prentice-Hall, 1982
 Buku Teks
Readings in American political behavior
edited by Raymond E. Wolfinger
Prentice-Hall, 1966
 Buku Teks
Plano, Jack C.
The American political dictionary
Holt, Rinehart and Winston, 1985
 Buku Referensi