Cite

Romandiola cum Pamensi Ducatu / per Gerardum Mercatorem.

MLA

Mercator, Gerhard, 1512-1594, cartographer. Romandiola cum Pamensi Ducatu / per Gerardum Mercatorem.. BRBL_00233. [1607?]. https://collections.library.yale.edu/catalog/15824448.

APA, 6th edition

Mercator, Gerhard, 1512-1594, cartographer. (["BRBL_00233"])([1607?])[Romandiola cum Pamensi Ducatu / per Gerardum Mercatorem.]. https://collections.library.yale.edu/catalog/15824448.