Guthrie, C. W. (2006). Going to the Sun Road: Glacier National Park's highway to the sky. Farcountry Press/Glacier Natural History Association.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGuthrie, C. W. Going to the Sun Road: Glacier National Park's Highway to the Sky. Helena, Mont.: Farcountry Press/Glacier Natural History Association, 2006.
एमएलए (8वां संस्करण) प्रशस्ति पत्रGuthrie, C. W. Going to the Sun Road: Glacier National Park's Highway to the Sky. Farcountry Press/Glacier Natural History Association, 2006.
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