Cite

[Map showing the Trieste-Isonzo region, including Fiume.]

MLA

[Map Showing the Trieste-Isonzo Region, Including Fiume.]. s.n., 1919. https://collections.library.yale.edu/catalog/15238281.

APA, 6th edition

[Map showing the Trieste-Isonzo region, including Fiume.]. (1919). [Maps]. s.n., https://collections.library.yale.edu/catalog/15238281.