Williams, T. T., & Williams, T. (2016). The hour of land: A personal topography of america's national parks (Unabridged.). Tantor Media.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWilliams, Terry Tempest, और Terry Williams. The Hour of Land: A Personal Topography of America's National Parks. Unabridged. Old Saybrook: Tantor Media, 2016.
एमएलए (8वां संस्करण) प्रशस्ति पत्रWilliams, Terry Tempest, और Terry Williams. The Hour of Land: A Personal Topography of America's National Parks. Unabridged. Tantor Media, 2016.
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