MLA

Company, H. M. Gousha. Metropolitan New Orleans and Vicinity / the H.M. Goushá Company [for] Shell. H.M. Gousha Co., 0AD. https://collections.library.yale.edu/catalog/15811462.

APA, 6th edition

Company, H. M. G. (0 C.E.). Metropolitan New Orleans and vicinity / the H.M. Goushá Company [for] Shell. [Road maps]. H.M. Gousha Co., https://collections.library.yale.edu/catalog/15811462.