Dudden, Arthur Power, 1921-
University of Pennsylvania Press, 1963
Buku Teks
Link, Arthur S.
Alfred A. Knopf, 1968
Buku Teks
edited by Henry F. Graff, T. Harry Williams and Margaret L. Coit
Time Incorporation, 1963
Buku Teks
The United States Conggress 1980, 1980
Buku Teks
Westview Press, 1980
Buku Teks