Johnson, R. H. (2013). Govier's "Invention" of the Theory of Argument. University of Windsor.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रJohnson, Ralph H. Govier's "Invention" of the Theory of Argument. University of Windsor, 2013.
एमएलए (9वां संस्करण) प्रशस्ति पत्रJohnson, Ralph H. Govier's "Invention" of the Theory of Argument. University of Windsor, 2013.
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