APA (7th ed.) Citation

Campbell, M. R. (1922). Guidebook of the western United States: Part E. The Denver & Rio Grande western route. Govt. print. off..

Chicago Style (17th ed.) Citation

Campbell, Marius R. Guidebook of the Western United States: Part E. The Denver & Rio Grande Western Route. Washington: Govt. print. off., 1922.

MLA (8th ed.) Citation

Campbell, Marius R. Guidebook of the Western United States: Part E. The Denver & Rio Grande Western Route. Govt. print. off., 1922.