Graham, S. (1936). Tramping with a poet in the Rockies. D. Appleton and company.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGraham, Stephen. Tramping with a Poet in the Rockies. New York: D. Appleton and company, 1936.
एमएलए (8वां संस्करण) प्रशस्ति पत्रGraham, Stephen. Tramping with a Poet in the Rockies. D. Appleton and company, 1936.
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