[Map of Italy and surrounding region during World War I.]
MLA
[Map of Italy and Surrounding Region during World War I.]. Istituto Geografico militare, 0AD. https://collections.library.yale.edu/catalog/15238214.
APA, 6th edition
[Map of Italy and surrounding region during World War I.]. (0 C.E.). [Maps]. Istituto Geografico militare, https://collections.library.yale.edu/catalog/15238214.