Hartzman, M. (2023). We are not alone: The extraordinary history of UFOs and aliens invading our hopes, fears, and fantasies. Quirk Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHartzman, Marc. We Are Not Alone: The Extraordinary History of UFOs and Aliens Invading Our Hopes, Fears, and Fantasies. Philadelphia: Quirk Books, 2023.
एमएलए (8वां संस्करण) प्रशस्ति पत्रHartzman, Marc. We Are Not Alone: The Extraordinary History of UFOs and Aliens Invading Our Hopes, Fears, and Fantasies. Quirk Books, 2023.
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