MLA

Typus Galliae Veteris [Cartographic Material] : Ex Conatib[Us] Geograph[Icis] Abrah[Ami] Ortelii. Excudebat Guiljelmus Blaeu, 0AD. https://collections.library.yale.edu/catalog/15483895.

APA, 6th edition

Typus Galliae veteris [cartographic material] : ex conatib[us] geograph[icis] Abrah[ami] Ortelii. (0 C.E.). [Maps]. Excudebat Guiljelmus Blaeu, https://collections.library.yale.edu/catalog/15483895.