APA-ийн эшлэл(7 дахь хэвлэлт)
Swanson, F. H. (2015). Where roads will never reach: Wilderness and its visionaries in the Northern Rockies. The University of Utah Press.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)
Swanson, Frederick H. Where Roads Will Never Reach: Wilderness and Its Visionaries in the Northern Rockies. Salt Lake City: The University of Utah Press, 2015.
MLA -ийн эшлэл (9 дэх хэвлэлт)
Swanson, Frederick H. Where Roads Will Never Reach: Wilderness and Its Visionaries in the Northern Rockies. The University of Utah Press, 2015.
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