Stone, J. (2019). Space travel (First American edition.). DK Publishing.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रStone, Jerry. Space Travel. First American edition. New York, New York: DK Publishing, 2019.
एमएलए (8वां संस्करण) प्रशस्ति पत्रStone, Jerry. Space Travel. First American edition. DK Publishing, 2019.
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