Coven, W., & Burris, P. (2015). Heidi Heckelbeck might be afraid of the dark (First Little Simon paperback edition.). Little Simon.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCoven, Wanda, और Priscilla Burris. Heidi Heckelbeck Might Be Afraid of the Dark. First Little Simon paperback edition. New York: Little Simon, 2015.
एमएलए (8वां संस्करण) प्रशस्ति पत्रCoven, Wanda, और Priscilla Burris. Heidi Heckelbeck Might Be Afraid of the Dark. First Little Simon paperback edition. Little Simon, 2015.
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