Stephenson, S. L. (2013). A natural history of the central Appalachians. West Virginia University Press.
Čikaški stil citiranja (17. izdanje)Stephenson, Steven L. A Natural History of the Central Appalachians. Morgantown: West Virginia University Press, 2013.
MLA način citiranja (9. izdanje)Stephenson, Steven L. A Natural History of the Central Appalachians. West Virginia University Press, 2013.
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