McCullough, D. G. (2019). The pioneers: The heroic story of the settlers who brought the American ideal west (First Simon & Schuster hardcover edition.). Simon & Schuster.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रMcCullough, David G. The Pioneers: The Heroic Story of the Settlers Who Brought the American Ideal West. First Simon & Schuster hardcover edition. New York: Simon & Schuster, 2019.
एमएलए (8वां संस्करण) प्रशस्ति पत्रMcCullough, David G. The Pioneers: The Heroic Story of the Settlers Who Brought the American Ideal West. First Simon & Schuster hardcover edition. Simon & Schuster, 2019.
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