Cite

Richardson's new map of the state of Texas.

MLA

Richardson's New Map of the State of Texas. G.W. & C.B. Colton & Co's Map Establishment, 0AD. https://collections.library.yale.edu/catalog/15811499.

APA, 6th edition

Richardson's new map of the state of Texas. (0 C.E.). [Maps]. G.W. & C.B. Colton & Co's Map Establishment, https://collections.library.yale.edu/catalog/15811499.