MLA

Jansson, Jan, 1588-1664, Jansson, Jan, 1588-1664. Atlas novus, Ortelius, Abraham, 1527-1598, Van den Keere, Pieter, 1571-ca. 1646 engraver. Insularum Britannicarum / acurata delineatio ex geographicis conatibus Abrahami Ortelii.. BRBL_00041. 1646?]. https://collections.library.yale.edu/catalog/15259720.

APA, 6th edition

Jansson, Jan, 1588-1664, & Jansson, Jan, 1588-1664. Atlas novus, & Ortelius, Abraham, 1527-1598, & Van den Keere, Pieter, 1571-ca. 1646 engraver. (["BRBL_00041"])(1646?])[Insularum Britannicarum / acurata delineatio ex geographicis conatibus Abrahami Ortelii.]. https://collections.library.yale.edu/catalog/15259720.