Willems, M. (2009). Pigs make me sneeze!: An elephant & piggie book. Hyperion Books for Children.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWillems, Mo. Pigs Make Me Sneeze!: An Elephant & Piggie Book. New York: Hyperion Books for Children, 2009.
एमएलए (8वां संस्करण) प्रशस्ति पत्रWillems, Mo. Pigs Make Me Sneeze!: An Elephant & Piggie Book. Hyperion Books for Children, 2009.
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