Bouler, O. (2011). Olivia's birds: Saving the Gulf. Sterling Children's Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBouler, Olivia. Olivia's Birds: Saving the Gulf. New York: Sterling Children's Books, 2011.
एमएलए (8वां संस्करण) प्रशस्ति पत्रBouler, Olivia. Olivia's Birds: Saving the Gulf. Sterling Children's Books, 2011.
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