International human rights law and practice: the roles of the United Nations, the private sector, the government, and their lawyers
edited by James C. Tuttle
American Bar Association, 1978
 Buku Teks
American government
by Susan Welch ... [and others]
Thomson, 2006
 Buku Teks
Sayre, Wallace S.
American government
Barnes & Noble, 1964
 Buku Teks
Posey, Rollin Bennett
American government
Littlefield, Adam, 1958
 Buku Teks
OConnor, Karen
American government
Addison Wesley Longman, 2001
 Buku Teks