Automobile road map of Southern California : showing highway systems and principal points of interest / prepared by the Route and Map Service Dept. of the Automobile Club of Southern California.
MLA
of Southern California. Route, Automobile Club, and Map Service. Automobile Road Map of Southern California : Showing Highway Systems and Principal Points of Interest / Prepared by the Route and Map Service Dept. of the Automobile Club of Southern California. The Club, 0AD. https://collections.library.yale.edu/catalog/15952277.
APA, 6th edition
of Southern California. Route, A. C., & Service, M. (0 C.E.). Automobile road map of Southern California : showing highway systems and principal points of interest / prepared by the Route and Map Service Dept. of the Automobile Club of Southern California. [Maps]. The Club, https://collections.library.yale.edu/catalog/15952277.