MLA

Asher, and Adams. Asher & Adams' Texas : Eastern Portion. Asher & Adams, 0AD. https://collections.library.yale.edu/catalog/15811563.

APA, 6th edition

A., & A. (0 C.E.). Asher & Adams' Texas : eastern portion. [Maps]. Asher & Adams, https://collections.library.yale.edu/catalog/15811563.