APA (7th ed.) Citation

Rubottom, C. V., Kennedy, M. S., & Toole, K. R. (1954). I knew Charles M. Russell: The cowboy artist. Montana Historical Society Press.

Chicago Style (17th ed.) Citation

Rubottom, Carter V., Michael Stephen Kennedy, and K. Ross Toole. I Knew Charles M. Russell: The Cowboy Artist. Helena: Montana Historical Society Press, 1954.

MLA (9th ed.) Citation

Rubottom, Carter V., et al. I Knew Charles M. Russell: The Cowboy Artist. Montana Historical Society Press, 1954.