APA (7th ed.) Citation

Schmidt, R. H., & Cisneros, J. (1973). A geographical survey of Chihuahua. Texas Western Press.

Chicago Style (17th ed.) Citation

Schmidt, Robert H., and José Cisneros. A Geographical Survey of Chihuahua. [El Paso, Tex.]: Texas Western Press, 1973.

MLA (9th ed.) Citation

Schmidt, Robert H., and José Cisneros. A Geographical Survey of Chihuahua. Texas Western Press, 1973.