Hempel, A. (2019). Sing to it (First Scribner hardcover edition.). Scribner.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHempel, Amy. Sing to It. First Scribner hardcover edition. New York: Scribner, 2019.
एमएलए (8वां संस्करण) प्रशस्ति पत्रHempel, Amy. Sing to It. First Scribner hardcover edition. Scribner, 2019.
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