Holmes, J. (2020). 12 seconds of silence: How a team of inventors, tinkerers, and spies took down a Nazi superweapon. Houghton Mifflin Harcourt.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHolmes, Jamie. 12 Seconds of Silence: How a Team of Inventors, Tinkerers, and Spies Took Down a Nazi Superweapon. Boston: Houghton Mifflin Harcourt, 2020.
एमएलए (8वां संस्करण) प्रशस्ति पत्रHolmes, Jamie. 12 Seconds of Silence: How a Team of Inventors, Tinkerers, and Spies Took Down a Nazi Superweapon. Houghton Mifflin Harcourt, 2020.
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