Billington, R. A. (1967). Westward wxpansion: A history of the American frontier. New York: MacMillan.
Chicago Style CitationBillington, Ray Allen. Westward Wxpansion: A History of the American Frontier. New York: MacMillan, 1967.
MLA CitationBillington, Ray Allen. Westward Wxpansion: A History of the American Frontier. New York: MacMillan, 1967.
Warning: These citations may not always be 100% accurate.