APA (7 वां संस्करण) प्रशस्ति पत्र
Harvey, M. W. T. (2000). A symbol of wilderness: Echo Park and the American conservation movement. University of Washington Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Harvey, Mark W. T. A Symbol of Wilderness: Echo Park and the American Conservation Movement. Seattle: University of Washington Press, 2000.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Harvey, Mark W. T. A Symbol of Wilderness: Echo Park and the American Conservation Movement. University of Washington Press, 2000.
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