Harrod, H. L. (1971). Mission among the Blackfeet ([1st ed.].). University of Oklahoma Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHarrod, Howard L. Mission Among the Blackfeet. [1st ed.]. Norman: University of Oklahoma Press, 1971.
एमएलए (8वां संस्करण) प्रशस्ति पत्रHarrod, Howard L. Mission Among the Blackfeet. [1st ed.]. University of Oklahoma Press, 1971.
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