Gramont, S. d. (1962). The secret war: The story of international espionage since World War II. New York: Putnam.
शिकागो स्टाइल उद्धरणGramont, Sanche de. The Secret War: The Story of International Espionage Since World War II. New York: Putnam, 1962.
एमएलए उद्धरणGramont, Sanche de. The Secret War: The Story of International Espionage Since World War II. New York: Putnam, 1962.
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