MLA

McNally, Rand, and Company. Rand McNally & Co.'s New Enlarged Scale Railroad and County Map of Texas : Compiled from the Latest and Most Accurate Surveys. Rand McNally & Co., 1887. https://collections.library.yale.edu/catalog/15811578.

APA, 6th edition

McNally, R., & C. (1887). Rand McNally & Co.'s new enlarged scale railroad and county map of Texas : compiled from the latest and most accurate surveys. [Maps]. Rand McNally & Co., https://collections.library.yale.edu/catalog/15811578.