Harley, B., & Gustavson, A. (2013). Charlie Bumpers vs. the Teacher of the Year. Peachtree Publishers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHarley, Bill, और Adam Gustavson. Charlie Bumpers Vs. the Teacher of the Year. Atlanta: Peachtree Publishers, 2013.
एमएलए (8वां संस्करण) प्रशस्ति पत्रHarley, Bill, और Adam Gustavson. Charlie Bumpers Vs. the Teacher of the Year. Peachtree Publishers, 2013.
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