Roy, Aldo R2012-03-142012-03-1419691969Source: Masters Abstracts International, Volume: 49-04, page: .http://hdl.handle.net/10393/22499http://dx.doi.org/10.20381/ruor-18056Abstract not available.115 p.History, Canadian.Political Science, International Relations.Some obstacles to the liberalization of trade between Canada and the United States in the late nineteenth centuryThesis