American government
by Susan Welch ... [and others]
Thomson, 2006
 Buku Teks SO
Sayre, Wallace S.
American government
Barnes & Noble, 1964
 Buku Teks SO
Posey, Rollin Bennett
American government
Littlefield, Adam, 1958
 Buku Teks SO
OConnor, Karen
American government
Addison Wesley Longman, 2001
 Buku Teks
Our American government / U.S. Government
U.S. Goverment, 2003
 Buku Teks SO