Newitz, A., & Cannon, C. (2021). Four lost cities: A secret history of the urban age (Unabridged.). HighBridge Audio.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNewitz, Annalee, और Chloe Cannon. Four Lost Cities: A Secret History of the Urban Age. Unabridged. Prince Frederick: HighBridge Audio, 2021.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNewitz, Annalee, और Chloe Cannon. Four Lost Cities: A Secret History of the Urban Age. Unabridged. HighBridge Audio, 2021.
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