[Portolan chart of the Mediterranean Sea and the Baltic Sea].
MLA
Oliva, Joan, active 1580-1615, cartographer. [Portolan chart of the Mediterranean Sea and the Baltic Sea].. [approximately 1587]. https://collections.library.yale.edu/catalog/2005111.
APA, 6th edition
Oliva, Joan, active 1580-1615, cartographer. ([approximately 1587])[[Portolan chart of the Mediterranean Sea and the Baltic Sea].]. https://collections.library.yale.edu/catalog/2005111.