edited by P. Edward Haley, David M. Keithly, and Jack Merritt
Westview Press, 1985
Buku Teks
edited by Ernest W. Lefever
Frederick A. Praeger, 1962
Buku Teks
Prentice-Hall, 1961
Buku Teks
Bechhoefer, Bernhard G.
Brookings Institution, 1961
Buku Teks
edited by Louis Henkin
Spectrum, 1961
Buku Teks