Wells, Kenneth McNeill, author
Jarrold & Sons, 1959
Buku Teks SO
chapters by Edgar McInnis ... [et al.] ; edited by George W. Brown
University of California Press, 1953
Buku Teks
edited by George W. Brown
University of California Press, 1954
Buku Teks
Manzer, Ronald A., author
McGraw-Hill Ryerson, 1974
Buku Teks
McInnis, Edgar, author
Holt, Rinehart and Winston of Canada, 1982
Buku Teks