Avi. (2020). The button war: A tale of the Great War (First U.S. paperback edition.). Candlewick Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAvi. The Button War: A Tale of the Great War. First U.S. paperback edition. Somerville, Massachussets: Candlewick Press, 2020.
एमएलए (8वां संस्करण) प्रशस्ति पत्रAvi. The Button War: A Tale of the Great War. First U.S. paperback edition. Candlewick Press, 2020.
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