The Press of Case Western Reserve University, 1972
Buku Teks
The Press of Case Western Reserve University, 1973
Buku Teks
Buckley, Jerome Hamilton, author
Foresman, 1965
Buku Teks
Dahrendorf, Ralf, author
Gramedia Pustaka Utama, 1992
Buku Teks
Hall, Walter Phelps
Appleton-Century-Crofts, 1957
Buku Teks