Morgan, Carl
Cheltenham, Ont., Boston Mills Press, 1977
Buku Teks
Spendlove, F. St. G.
Ryerson Press, 1958
Buku Teks
Manzer, Ronald A., author
McGraw-Hill Ryerson, 1974
Buku Teks
McInnis, Edgar
Holt, Rinehart and Winston of Canada, 1982
Buku Teks
edited by George W. Brown
University of California Press, 1954
Buku Teks