Milgrim, D. (2016). Go, Otto, go! (First Simon Spotlight hardcover/paperback edition.). Simon Spotlight.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रMilgrim, David. Go, Otto, Go! First Simon Spotlight hardcover/paperback edition. New York: Simon Spotlight, 2016.
एमएलए (8वां संस्करण) प्रशस्ति पत्रMilgrim, David. Go, Otto, Go! First Simon Spotlight hardcover/paperback edition. Simon Spotlight, 2016.
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