Road map of Rhode Island [cartographic material] : showing all the roads and points of interest, with the cycling roads distinguished by red lines.
MLA
Walker, Geo. H., and Co. Road Map of Rhode Island [Cartographic Material] : Showing All the Roads and Points of Interest, with the Cycling Roads Distinguished by Red Lines. Geo. H. Walker & Co., 0AD. https://collections.library.yale.edu/catalog/15952284.
APA, 6th edition
Walker, G. H., & C. (0 C.E.). Road map of Rhode Island [cartographic material] : showing all the roads and points of interest, with the cycling roads distinguished by red lines. [Maps, Road maps]. Geo. H. Walker & Co., https://collections.library.yale.edu/catalog/15952284.
