Cite

Map of the Great Western railway, and its connecting railroad lines

MLA

Smith, and Damoreau. Map of the Great Western Railway, and Its Connecting Railroad Lines. 0AD. https://collections.library.yale.edu/catalog/2011851.

APA, 6th edition

S., & D. (0 C.E.). Map of the Great Western railway, and its connecting railroad lines [Maps]. https://collections.library.yale.edu/catalog/2011851.