Cottrell Boyce, F. (2017). Sputnik's guide to life on Earth (First U.S. edition.). Walden Pond Press, an imprint of HarperCollins Publishers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCottrell Boyce, Frank. Sputnik's Guide to Life on Earth. First U.S. edition. New York, NY: Walden Pond Press, an imprint of HarperCollins Publishers, 2017.
एमएलए (8वां संस्करण) प्रशस्ति पत्रCottrell Boyce, Frank. Sputnik's Guide to Life on Earth. First U.S. edition. Walden Pond Press, an imprint of HarperCollins Publishers, 2017.
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