Cite

[Anonymous ms. Portugese portolano of the Atlantic Ocean.]

MLA

[Anonymous Ms. Portugese Portolano of the Atlantic Ocean.]. 1619. https://collections.library.yale.edu/catalog/15826637.

APA, 6th edition

[Anonymous ms. Portugese portolano of the Atlantic Ocean.]. (1619). [Manuscript maps, Portolan charts, Portolanos--Atlantic Ocean--1619]. https://collections.library.yale.edu/catalog/15826637.