1. The United States and Canada: The Quest for Free Trade: An Examination od Selected Issues;Wonnacott,1987
2. Free trade between Canada and the United States: the issues that will not go away;Granatstein,1985
3. Canada-US Trade Negotiations: A Chronology;Canada, Department of External Affairs,1987
4. The Canadian Non-Fuel Mineral Industry Defined;McCulla,1978