Willey, David, author
Galery Books, 2015
Buku Teks
Charles, W. Eliot, edited
P. F. Collier & Son Corporation, 1959 ; 1969
Buku Referensi
Bacon, Roy
Sunburst Books, 1995
Buku Teks
Bacon, Wallace A.
Holt, Rinehart and Winston, Inc., 1972
Buku Teks
Wolfe,Tom
Farrar straus giroux, 1998
Buku Teks