Helm, W. P. (1947). Harry truman: A political biography. New York: Duell, Sloan and Pearce.
शिकागो स्टाइल उद्धरणHelm, William P. Harry Truman: A Political Biography. New York: Duell, Sloan and Pearce, 1947.
एमएलए उद्धरणHelm, William P. Harry Truman: A Political Biography. New York: Duell, Sloan and Pearce, 1947.
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