ebrary, Inc, & Stern, A. (2001). Our universe: The thrill of extragalactic exploration as told by leading experts. Cambridge University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रebrary, Inc, और Alan Stern. Our Universe: The Thrill of Extragalactic Exploration as Told by Leading Experts. Cambridge UK ; New York, NY: Cambridge University Press, 2001.
एमएलए (9वां संस्करण) प्रशस्ति पत्रebrary, Inc, और Alan Stern. Our Universe: The Thrill of Extragalactic Exploration as Told by Leading Experts. Cambridge University Press, 2001.
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