Scott, Andrew M., author
Holt, Rinehart & Winston, 1959
Buku Teks
edited by Edward McChesney Sait, Michael Beresford Foster, W.T. Jones
1252, 1949
Buku Teks
Westing, John Howard, author
Macmillan, c1975
Buku Teks
Brinton, Crane, 1898-1968, author
Prentice-Hall, 1963
Buku Teks
Watt, William Montgomery, author
Edinburg University Press, 1980
Buku Teks