Cite

E.M. Powell's map of the state of Texas.

MLA

McNally, Rand, and publisher Company. E.M. Powell's Map of the State of Texas. Rand, McNally & Co., 0AD. https://collections.library.yale.edu/catalog/17362107.

APA, 6th edition

McNally, R., & Company, publisher. (0 C.E.). E.M. Powell's map of the state of Texas. [Lithographs, Maps, Promotional materials]. Rand, McNally & Co. https://collections.library.yale.edu/catalog/17362107.