Cite

Sardinia: Special strategic map [cartographic material].

MLA

Sardinia: Special Strategic Map [Cartographic Material]. Army Map Service, U.S. Army, 1943. https://collections.library.yale.edu/catalog/15497773.

APA, 6th edition

Sardinia: Special strategic map [cartographic material]. (1943). [Maps]. Army Map Service, U.S. Army, https://collections.library.yale.edu/catalog/15497773.