Olson, T., Allred, S., & Proch, G. (2010). How to get rich on a Texas cattle drive: In which I tell the honest truth about rampaging rustlers, stampeding steers, and other fateful hazards on the wild Chisholm Trail. National Geographic.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रOlson, Tod, Scott Allred, और Gregory Proch. How to Get Rich on a Texas Cattle Drive: In Which I Tell the Honest Truth About Rampaging Rustlers, Stampeding Steers, and Other Fateful Hazards on the Wild Chisholm Trail. Washington, D.C.: National Geographic, 2010.
एमएलए (8वां संस्करण) प्रशस्ति पत्रOlson, Tod, et al. How to Get Rich on a Texas Cattle Drive: In Which I Tell the Honest Truth About Rampaging Rustlers, Stampeding Steers, and Other Fateful Hazards on the Wild Chisholm Trail. National Geographic, 2010.
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