Hertog, T., & Kelly, E. (2023). On the origin of time: Stephen hawking's final theory (Unabridged.). Random House Audio.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHertog, Thomas, और Ethan Kelly. On the Origin of Time: Stephen Hawking's Final Theory. Unabridged. New York: Random House Audio, 2023.
एमएलए (8वां संस्करण) प्रशस्ति पत्रHertog, Thomas, और Ethan Kelly. On the Origin of Time: Stephen Hawking's Final Theory. Unabridged. Random House Audio, 2023.
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