Mayfield Publishing Company , 1994
Buku Teks
Conrad, Joseph, 1857-1924, author
W.W. Norton, 1971
Buku Teks
Klingner, Donald E.
Prentice-Hall, 1980
Buku Teks
American Library Association, 1980
Buku Teks
Kiernan, Brian, author
Oxford University Press, 1974
Buku Teks