Brinton, Crane, 1898-1968
Prentice-Hall, 1963
Buku Teks SO
edited by Eric N. Baklanoff
Published for the Latin American Studies Institute, by Louisiana State University Press, 1969
Buku Teks
Kearl, Michael C.
Allyn and Bacon, 1992
Buku Teks SO
Brinton, Crane, 1898-1968
The New American Library, 1958
Buku Teks SO
Carson, Robert C.
Longman, 1997
Buku Teks SO