Zakroff, C. (2021). Whales: Diving into the unknown (First edition.). First Second.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रZakroff, Casey. Whales: Diving into the Unknown. First edition. New York: First Second, 2021.
एमएलए (8वां संस्करण) प्रशस्ति पत्रZakroff, Casey. Whales: Diving into the Unknown. First edition. First Second, 2021.
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