editors, Roy C. Macridis and Robert E. Ward
Prentice-Hall, 1963
Buku Teks
Abboushi, W.F., 1931-, author
Dodd, Mead, 1971
Buku Teks
by Samuel H. Beer ... [et al.]
Random House, 1965
Buku Teks
1947
Buku Teks
Anderson, Eugene N.
University of Nebraska Press, 1954
Buku Teks