MLA

Ruger, A. Bird's Eye View of the City of Nebraska City, Otoe County, Nebraska 1868 [Cartographic Material]. Merchants' Lithogr. Co., 0AD. https://collections.library.yale.edu/catalog/2016082.

APA, 6th edition

Ruger, A. (0 C.E.). Bird's eye view of the city of Nebraska City, Otoe County, Nebraska 1868 [cartographic material] [Aerial views]. Merchants' Lithogr. Co. https://collections.library.yale.edu/catalog/2016082.