Fulton, K., & Kuhlmann, T. (2020). Flight for freedom: The Wetzel family's daring escape from East Germany. Chronicle Books LLC.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रFulton, Kristen, और Torben Kuhlmann. Flight for Freedom: The Wetzel Family's Daring Escape from East Germany. San Francisco, California: Chronicle Books LLC, 2020.
एमएलए (8वां संस्करण) प्रशस्ति पत्रFulton, Kristen, और Torben Kuhlmann. Flight for Freedom: The Wetzel Family's Daring Escape from East Germany. Chronicle Books LLC, 2020.
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