Heinrich, B. (2021). Racing the clock: Running across a lifetime (First edition.). Ecco, an imprint of HarperCollinsPublishers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHeinrich, Bernd. Racing the Clock: Running Across a Lifetime. First edition. New York, NY: Ecco, an imprint of HarperCollinsPublishers, 2021.
एमएलए (8वां संस्करण) प्रशस्ति पत्रHeinrich, Bernd. Racing the Clock: Running Across a Lifetime. First edition. Ecco, an imprint of HarperCollinsPublishers, 2021.
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