Sears. Gerard P. Kuiper and the Rise of Modern Planetary Science. University of Arizona Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSears. Gerard P. Kuiper and the Rise of Modern Planetary Science. University of Arizona Press.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSears. Gerard P. Kuiper and the Rise of Modern Planetary Science. University of Arizona Press.
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