Erickson, J. R. (2018). The case of the three-toed sloth (Unabridged.). Maverick Books, Inc..
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रErickson, John R. The Case of the Three-toed Sloth. Unabridged. Perryton, TX: Maverick Books, Inc., 2018.
एमएलए (8वां संस्करण) प्रशस्ति पत्रErickson, John R. The Case of the Three-toed Sloth. Unabridged. Maverick Books, Inc., 2018.
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