Kolker, R., & Pratt, S. (2020). Hidden valley road: Inside the mind of an american family (Unabridged.). Random House Audio.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रKolker, Robert, और Sean Pratt. Hidden Valley Road: Inside the Mind of an American Family. Unabridged. New York: Random House Audio, 2020.
एमएलए (8वां संस्करण) प्रशस्ति पत्रKolker, Robert, और Sean Pratt. Hidden Valley Road: Inside the Mind of an American Family. Unabridged. Random House Audio, 2020.
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