Bowman, D. J., & Minter, D. (2016). Step right up: How Doc and Jim Key taught the world about kindness (First edition.). Lee & Low Books Inc..
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBowman, Donna Janell, और Daniel Minter. Step Right Up: How Doc and Jim Key Taught the World About Kindness. First edition. New York, NY: Lee & Low Books Inc., 2016.
एमएलए (8वां संस्करण) प्रशस्ति पत्रBowman, Donna Janell, और Daniel Minter. Step Right Up: How Doc and Jim Key Taught the World About Kindness. First edition. Lee & Low Books Inc., 2016.
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