Hubbard, B. (2018). Space race: The story of space exploration to the moon and beyond. B.E.S. Publishing.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHubbard, Ben. Space Race: The Story of Space Exploration to the Moon and Beyond. Hauppauge, New York: B.E.S. Publishing, 2018.
एमएलए (8वां संस्करण) प्रशस्ति पत्रHubbard, Ben. Space Race: The Story of Space Exploration to the Moon and Beyond. B.E.S. Publishing, 2018.
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