Chapman, L. J., & Putnam, D. F. (1966). The physiography of southern Ontario (2nd ed.). Toronto: University of Toronto Press : Ontario Research Foundation.
Παραπομπή Chicago StyleChapman, L. J., and Donald F. Putnam. The Physiography of Southern Ontario. 2nd ed. Toronto: University of Toronto Press : Ontario Research Foundation, 1966.
Παραπομπή MLAChapman, L. J., and Donald F. Putnam. The Physiography of Southern Ontario. 2nd ed. Toronto: University of Toronto Press : Ontario Research Foundation, 1966.
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