Cite

Portolan chart of the Mediterranean Sea, the Black Sea, and the northern coast of Africa.

MLA

Comberford, Nicholas, -1673, cartographer. Portolan chart of the Mediterranean Sea, the Black Sea, and the northern coast of Africa.. [1647]. https://collections.library.yale.edu/catalog/16823432.

APA, 6th edition

Comberford, Nicholas, -1673, cartographer. ([1647])[Portolan chart of the Mediterranean Sea, the Black Sea, and the northern coast of Africa.]. https://collections.library.yale.edu/catalog/16823432.