Whittlesey. Old Yellowstone Days. University of New Mexico Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWhittlesey. Old Yellowstone Days. University of New Mexico Press.
एमएलए (9वां संस्करण) प्रशस्ति पत्रWhittlesey. Old Yellowstone Days. University of New Mexico Press.
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