APA (7 वां संस्करण) प्रशस्ति पत्र
Smith, T. G. (2006). Green republican: John Saylor and the preservation of America's wilderness. University of Pittsburgh Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Smith, Thomas G. Green Republican: John Saylor and the Preservation of America's Wilderness. Pittsburgh, Pennsylvania: University of Pittsburgh Press, 2006.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Smith, Thomas G. Green Republican: John Saylor and the Preservation of America's Wilderness. University of Pittsburgh Press, 2006.
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