Hemming, H. (2019). Agents of influence: A British campaign, a Canadian spy, and the secret plot to bring America into World War II (First U.S. edition.). PublicAffairs.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHemming, Henry. Agents of Influence: A British Campaign, a Canadian Spy, and the Secret Plot to Bring America into World War II. First U.S. edition. New York: PublicAffairs, 2019.
एमएलए (8वां संस्करण) प्रशस्ति पत्रHemming, Henry. Agents of Influence: A British Campaign, a Canadian Spy, and the Secret Plot to Bring America into World War II. First U.S. edition. PublicAffairs, 2019.
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