Cite

Bird's eye view of the city of Omaha, Nebraska 1868 [cartographic material]

MLA

Ruger, A., and artist. Bird's Eye View of the City of Omaha, Nebraska 1868 [Cartographic Material]. Chicago Lithographing Co., 0AD. https://collections.library.yale.edu/catalog/2016505.

APA, 6th edition

Ruger, A., & artist. (0 C.E.). Bird's eye view of the city of Omaha, Nebraska 1868 [cartographic material] [Aerial views, Lithographs]. Chicago Lithographing Co. https://collections.library.yale.edu/catalog/2016505.