Sears. Gerard P. Kuiper and the Rise of Modern Planetary Science. University of Arizona Press.
Lua i Stíl Chicago (17ú heag.)Sears. Gerard P. Kuiper and the Rise of Modern Planetary Science. University of Arizona Press.
Lua MLA (9ú heag.)Sears. Gerard P. Kuiper and the Rise of Modern Planetary Science. University of Arizona Press.
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