MLA

Club, National Automobile. Road Map of the Western States / Prepared by Engineering Department, National Automobile Club. National Automobile Club, 0AD. https://collections.library.yale.edu/catalog/15812998.

APA, 6th edition

Club, N. A. (0 C.E.). Road map of the western states / prepared by Engineering Department, National Automobile Club. [Road maps]. National Automobile Club, https://collections.library.yale.edu/catalog/15812998.