Crownover, J. D. (2020). Sheep Pen Cañon (Large print edition.). Wheeler Publishing, a part of Gale, a Cengage Company Gale.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCrownover, James D. Sheep Pen Cañon. Large print edition. Waterville, Maine: Wheeler Publishing, a part of Gale, a Cengage Company Gale, 2020.
एमएलए (8वां संस्करण) प्रशस्ति पत्रCrownover, James D. Sheep Pen Cañon. Large print edition. Wheeler Publishing, a part of Gale, a Cengage Company Gale, 2020.
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