Conrad, Joseph, 1857-1924
W.W. Norton, 1971
Buku Teks
Klingner, Donald E.
Prentice-Hall, 1980
Buku Teks
American Library Association, 1980
Buku Teks
Kiernan, Brian
Oxford University Press, 1974
Buku Teks
Porter, Kirk H.
University of Illinois Press, 1966
Buku Teks