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
Atkinson, Donald T
The World Publishing, 1956
Buku Teks
Cambridge University Press, 1994
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