Walker, Bryce S., author
The Rocky Mountains
Time-Life Books, 1973
 Buku Teks
Palmer, Joel
Journal of travels over the Rocky Mountains
Ann Arbor University Microfilms 1966
 Buku Teks
Walker, Von Bryce S
Die Rocky mountains/Von bryce S. Walker
Die Wildnisse Der welt, 1973
 Buku Teks
O`Connor, Mark, author
Poetry of the mountains
Megalong Book, 1988
 Buku Teks
Hosseini, Khaled, author
And the mountains echoed
Penguin Books, 2013
 Buku Teks
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