Cite

Les Balkans [cartographic material].

MLA

Peltier, Georges. Les Balkans [Cartographic Material]. 1915. https://collections.library.yale.edu/catalog/15498759.

APA, 6th edition

Peltier, G. (1915). Les Balkans [cartographic material]. [Maps]. https://collections.library.yale.edu/catalog/15498759.