APA (7th ed.) Citation

Langdon, E. F. (1969). The Cripple Creek strike, a history of industrial wars in Colorado. Arno Press.

Chicago Style (17th ed.) Citation

Langdon, Emma Florence. The Cripple Creek Strike, a History of Industrial Wars in Colorado. New York: Arno Press, 1969.

MLA (9th ed.) Citation

Langdon, Emma Florence. The Cripple Creek Strike, a History of Industrial Wars in Colorado. Arno Press, 1969.