Allin, Cephas D., and George Jones. Annexation, Preferential Trade and Reciprocity: An Outline of the Canadian Annexation Movement of 1849-50, With Special Reference to the Questions of Preferential Trade and Reciprocity. Toronto, ON and London, England: The Musson Book Company, 1912. https://archive.org/details/annexationprefer00alliiala/page/n6.
