Appalachian Mountains
Appearance
- "Appalachian Mountains," in The American Cyclopædia (1879)
- "Appalachians," in The New International Encyclopædia, New York: Dodd, Mead and Co. (1905)
- "Appalachian Mountains," by Arthur Coe Spencer in Encyclopædia Britannica (11th ed., 1911)
- "Appalachian Mountains," in The New Student's Reference Work, Chicago: F.E. Compton and Co. (1914)
- "Appalachian Mountains," by Marrion Wilcox in The Encyclopedia Americana, New York: The Encyclopedia Americana Corporation (1920)