Não informado. (1971). JPL quarterly technical review. California Institute of Technology, Jet Propulsion Laboratory.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. JPL Quarterly Technical Review. Pasadena, Calif: California Institute of Technology, Jet Propulsion Laboratory, 1971.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. JPL Quarterly Technical Review. California Institute of Technology, Jet Propulsion Laboratory, 1971.
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