Cite

Map of the Russian Empire.

MLA

of New York, American Geographical Society. Map of the Russian Empire. American Geographical Society, 1915. https://collections.library.yale.edu/catalog/15238066.

APA, 6th edition

of New York, A. G. S. (1915). Map of the Russian Empire. [Maps, Outline maps]. American Geographical Society, https://collections.library.yale.edu/catalog/15238066.