Road map of the State of California : compiled from maps by the United States government and from various county maps / under the direction of Austin B. Fletcher, highway engineer ; State of California, Dept. of Engineering, California Highway Commission
MLA
Borgnis, Franklin P. Road Map of the State of California : Compiled from Maps by the United States Government and from Various County Maps / under the Direction of Austin B. Fletcher, Highway Engineer ; State of California, Dept. of Engineering, California Highway Commission. The Commission, 1920. https://collections.library.yale.edu/catalog/15821493.
APA, 6th edition
Borgnis, F. P. (1920). Road map of the State of California : compiled from maps by the United States government and from various county maps / under the direction of Austin B. Fletcher, highway engineer ; State of California, Dept. of Engineering, California Highway Commission [Maps]. The Commission, https://collections.library.yale.edu/catalog/15821493.
