Cite

[Map of Eastern Europe and the Balkan Peninsula].

MLA

[Map of Eastern Europe and the Balkan Peninsula]. s.n., 1919. https://collections.library.yale.edu/catalog/15238185.

APA, 6th edition

[Map of Eastern Europe and the Balkan Peninsula]. (1919). [Hand coloring, Maps]. s.n., https://collections.library.yale.edu/catalog/15238185.