MLA

Company, H. M. Gousha. Continental Oil Co., Official Road Map, Utah / Compliments of Continental Oil Co. H.M. Gousha Co., 0AD. https://collections.library.yale.edu/catalog/15818505.

APA, 6th edition

Company, H. M. G. (0 C.E.). Continental Oil Co., official road map, Utah / compliments of Continental Oil Co. [Road maps]. H.M. Gousha Co., https://collections.library.yale.edu/catalog/15818505.