MLA

Mercator, Gerhard, 1512-1594, cartographer. Veronae, Vicentiae et Patavii Ditiones / per Gerardum Mercatorum, cum privilegio.. BRBL_00234. [between 1613 and 1618?]. https://collections.library.yale.edu/catalog/15763328.

APA, 6th edition

Mercator, Gerhard, 1512-1594, cartographer. (["BRBL_00234"])([between 1613 and 1618?])[Veronae, Vicentiae et Patavii Ditiones / per Gerardum Mercatorum, cum privilegio.]. https://collections.library.yale.edu/catalog/15763328.