Portolan chart of the Mediterranean Sea, the North Atlantic Ocean, the Black Sea, and the West African coast as far south as Sierra Leone.
MLA
Aguilar, Jorge de. Portolan Chart of the Mediterranean Sea, the North Atlantic Ocean, the Black Sea, and the West African Coast as Far South as Sierra Leone. 0AD. https://collections.library.yale.edu/catalog/2005107.
APA, 6th edition
Aguilar, J. de. (0 C.E.). Portolan chart of the Mediterranean Sea, the North Atlantic Ocean, the Black Sea, and the West African coast as far south as Sierra Leone. [Manuscript maps., Portolan charts.]. https://collections.library.yale.edu/catalog/2005107.