Gutman, D. (2007). Abner & me: A baseball card adventure (First Harper Trophy edition.). HarperTrophy.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGutman, Dan. Abner & Me: A Baseball Card Adventure. First Harper Trophy edition. New York: HarperTrophy, 2007.
एमएलए (8वां संस्करण) प्रशस्ति पत्रGutman, Dan. Abner & Me: A Baseball Card Adventure. First Harper Trophy edition. HarperTrophy, 2007.
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