Friesen, Gerald, author
University of Toronto Press, 1984
Buku Teks
Clokie, H. Mcd.
Toronto Langmans, Green 1950
Buku Teks
C.J. Harris, editor
Quick Canadian Fact , 1981
Buku Referensi
[publisher not identified], [date of publication not identified]
Buku Teks
Longmore, George, author
Golden Dog Press, 1977
Buku Teks