Keating, J., & DeGrand, D. (2017). What makes a monster?: Discovering the world's scariest creatures (First edition.). Alfred A. Knopf.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रKeating, Jess, और David DeGrand. What Makes a Monster?: Discovering the World's Scariest Creatures. First edition. New York: Alfred A. Knopf, 2017.
एमएलए (8वां संस्करण) प्रशस्ति पत्रKeating, Jess, और David DeGrand. What Makes a Monster?: Discovering the World's Scariest Creatures. First edition. Alfred A. Knopf, 2017.
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