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
Richard Dean Burns, editor in chief
Charles Scribner's Sons, 1993
Buku Referensi
edited by Roman Kolkowicz and Neil Joeck
Westview Press, 1984
Buku Teks