MLA

McNally, Rand, and Company. Rock Island-Frisco Systems. Rand, McNally & Co., 0AD. https://collections.library.yale.edu/catalog/15813035.

APA, 6th edition

McNally, R., & C. (0 C.E.). Rock Island-Frisco systems. [Maps]. Rand, McNally & Co., https://collections.library.yale.edu/catalog/15813035.