Ferkiss, Victor C.
Braziller, 1969
Buku Teks
Larue, Gerald A.
Prentice-Hall, 1975
Buku Teks
Smith, L. Glenn, author
Allyn and Bacon, 1973
Buku Teks
Creel, Herrlee Glessner, 1905-1994, author
John Day, [date of publication not identified]
Buku Teks
Camus, Albert, 1913-1960, author
Vintage Books, 1955
Buku Teks