COERR ELEANOR. (2020). BUFFALO BILL AND THE PONY EXPRESS (2020.). HARPER COLLINS PUBLICATION.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCOERR ELEANOR. BUFFALO BILL AND THE PONY EXPRESS. 2020. LONDON: HARPER COLLINS PUBLICATION, 2020.
एमएलए (9वां संस्करण) प्रशस्ति पत्रCOERR ELEANOR. BUFFALO BILL AND THE PONY EXPRESS. 2020. HARPER COLLINS PUBLICATION, 2020.
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