Caledonian Railway map of Scotland / John Bartholomew & Co. ; Edinburgh Geographical Institute.
MLA
Bartholomew, John, and Son. Caledonian Railway Map of Scotland / John Bartholomew & Co. ; Edinburgh Geographical Institute. John Bartholomew, 0AD. https://collections.library.yale.edu/catalog/15826804.
APA, 6th edition
Bartholomew, J., & S. (0 C.E.). Caledonian Railway map of Scotland / John Bartholomew & Co. ; Edinburgh Geographical Institute. [Maps]. John Bartholomew, https://collections.library.yale.edu/catalog/15826804.