Guthrie, C. W. (2004). All aboard! for Glacier: The Great Northern Railway and Glacier National Park. Farcountry Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGuthrie, C. W. All Aboard! for Glacier: The Great Northern Railway and Glacier National Park. Helena, Mont.: Farcountry Press, 2004.
एमएलए (8वां संस्करण) प्रशस्ति पत्रGuthrie, C. W. All Aboard! for Glacier: The Great Northern Railway and Glacier National Park. Farcountry Press, 2004.
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