Gwyn, Richard
McClelland and Stewart, 1980
Buku Teks
Donaldson, Gordon
Doubleday, 1985
Buku Teks
Dawson, R. MacGregor
Universitas of Toronto Press , 1958
Buku Teks
Creighton, Donald
Macmillan, 1952-1955
Buku Teks
Stursberg, Peter
Doubleday canada litnited, 1980
Buku Teks