Large scale map of Russia in Europe.
MLA
Hammond, C. S., and Company. Large Scale Map of Russia in Europe. C.S. Hammond, 0AD. https://collections.library.yale.edu/catalog/15474803.
APA, 6th edition
Hammond, C. S., & C. (0 C.E.). Large scale map of Russia in Europe. [Maps]. C.S. Hammond, https://collections.library.yale.edu/catalog/15474803.