Olivera, R. (2015). ABCs on wings (First Little Simon hardcover edition.). Little Simon, an imprint of Simon & Schuster.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रOlivera, Ramon. ABCs on Wings. First Little Simon hardcover edition. New York: Little Simon, an imprint of Simon & Schuster, 2015.
एमएलए (8वां संस्करण) प्रशस्ति पत्रOlivera, Ramon. ABCs on Wings. First Little Simon hardcover edition. Little Simon, an imprint of Simon & Schuster, 2015.
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