Cite

Saltzburg archiepiscopatus et Carinthia ducatus [cartographic material]

MLA

Mercator, Gerhard, 1512-1594, cartographer. Saltzburg archiepiscopatus et Carinthia ducatus [cartographic material]. [ca. 1634]. https://collections.library.yale.edu/catalog/2068048.

APA, 6th edition

Mercator, Gerhard, 1512-1594, cartographer. ([ca. 1634])[Saltzburg archiepiscopatus et Carinthia ducatus [cartographic material]]. https://collections.library.yale.edu/catalog/2068048.