^K. W. TAYLOR, "Tariffs", in W. Stewart WALLACE, ed., The Encyclopedia of Canada, Vol. VI, Toronto, University Associates of Canada, 1948, 398p., pp. 102–108.
^K. W. TAYLOR, "Tariffs", in W. Stewart WALLACE, ed., The Encyclopedia of Canada, Vol. VI, Toronto, University Associates of Canada, 1948, 398p., pp. 102–108.