Cite

[Portolan chart of the Mediterranean Sea, the North Atlantic Ocean, the Black Sea, and the northwestern African coast].

MLA

[Portolan Chart of the Mediterranean Sea, the North Atlantic Ocean, the Black Sea, and the Northwestern African Coast]. 0AD. https://collections.library.yale.edu/catalog/32335778.

APA, 6th edition

[Portolan chart of the Mediterranean Sea, the North Atlantic Ocean, the Black Sea, and the northwestern African coast]. (0 C.E.). [Maps, Forgeries, Manuscript maps, Portolan charts]. https://collections.library.yale.edu/catalog/32335778.