Discovery Channel (Firm), Discovery Communications, Inc, Discovery Networks, Cronkie Ward Company, Malone, A., Sutherland, D., . . . MacLowry, R. (1997). Galileo's dialogue. Discovery Communications.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रDiscovery Channel (Firm), et al. Galileo's Dialogue. Bethesda, Md: Discovery Communications, 1997.
एमएलए (9वां संस्करण) प्रशस्ति पत्रDiscovery Channel (Firm), et al. Galileo's Dialogue. Discovery Communications, 1997.
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