Alcorn, R. C. (2011). The chasm: A journey to the edge of life. Multnomah Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAlcorn, Randy C. The Chasm: A Journey to the Edge of Life. Colorado Springs, Colo.: Multnomah Books, 2011.
एमएलए (8वां संस्करण) प्रशस्ति पत्रAlcorn, Randy C. The Chasm: A Journey to the Edge of Life. Multnomah Books, 2011.
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