Riverside street map / made by Thomas Bros.
MLA
Maps, Thomas Bros. Riverside Street Map / Made by Thomas Bros. Thomas Bros., 0AD. https://collections.library.yale.edu/catalog/15821521.
APA, 6th edition
Maps, T. B. (0 C.E.). Riverside street map / made by Thomas Bros. [Maps]. Thomas Bros., https://collections.library.yale.edu/catalog/15821521.