Fehrenbach, F., & Prichard, M. (2009). Valkyrie: The story of the plot to kill hitler, by its last member (Unabridged.). Tantor Media.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रFehrenbach, Florence, और Michael Prichard. Valkyrie: The Story of the Plot to Kill Hitler, by Its Last Member. Unabridged. Old Saybrook: Tantor Media, 2009.
एमएलए (8वां संस्करण) प्रशस्ति पत्रFehrenbach, Florence, और Michael Prichard. Valkyrie: The Story of the Plot to Kill Hitler, by Its Last Member. Unabridged. Tantor Media, 2009.
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