McInnis, Edgar, author
Clarke Irwin, 1956
Buku Teks
McInnis, Edgar, author
Holt, Rinehart and Winston of Canada, 1982
Buku Teks
Finkle, Jason L., author
John Wiley & Sons, 1968
Buku Teks
Finkle, Jason L., author
John Wiley & Sons, 1966
Buku Teks
Bereano, Philip L., author
John Wiley & Sons, 1976
Buku Teks