Barkley, C., & Bishop, T. N. (2017). Amy on park patrol (First Little Simon hardcover edition ; First Little Simon paperback edition.). Little Simon.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBarkley, Callie, और Tracy Nishimura Bishop. Amy on Park Patrol. First Little Simon hardcover edition ; First Little Simon paperback edition. New York, NY: Little Simon, 2017.
एमएलए (8वां संस्करण) प्रशस्ति पत्रBarkley, Callie, और Tracy Nishimura Bishop. Amy on Park Patrol. First Little Simon hardcover edition ; First Little Simon paperback edition. Little Simon, 2017.
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