Mackenzie, K. C. (1968). Tariff- making and trade policy in the U. S. and Canada. New York: Frederick A. Praeger Publishers.
शिकागो स्टाइल उद्धरणMackenzie, Kenneth C. Tariff- Making and Trade Policy in the U. S. and Canada. New York: Frederick A. Praeger Publishers, 1968.
एमएलए उद्धरणMackenzie, Kenneth C. Tariff- Making and Trade Policy in the U. S. and Canada. New York: Frederick A. Praeger Publishers, 1968.
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