Kilmeade, B., & Yaeger, D. (2013). George Washington's secret six: The spy ring that saved the American Revolution (Unabridged.). Penguin Audio.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रKilmeade, Brian, और Don Yaeger. George Washington's Secret Six: The Spy Ring That Saved the American Revolution. Unabridged. New York: Penguin Audio, 2013.
एमएलए (8वां संस्करण) प्रशस्ति पत्रKilmeade, Brian, और Don Yaeger. George Washington's Secret Six: The Spy Ring That Saved the American Revolution. Unabridged. Penguin Audio, 2013.
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