Regnum Moreae accuratissime divisum in Provincias Saccaniam, Tzaconiam, Caliscopium et Ducatum Clarensae, una cum Insulis Cephalonia, Zacyntho, Cythera, Aegina et Sidra [cartographic material].
MLA
Valck, G. (Gerard), 1651 or 1652-1726. Regnum Moreae accuratissime divisum in Provincias Saccaniam, Tzaconiam, Caliscopium et Ducatum Clarensae, una cum Insulis Cephalonia, Zacyntho, Cythera, Aegina et Sidra [cartographic material].. [ca. 1702?]. https://collections.library.yale.edu/catalog/16618402.
APA, 6th edition
Valck, G. (Gerard), 1651 or 1652-1726. ([ca. 1702?])[Regnum Moreae accuratissime divisum in Provincias Saccaniam, Tzaconiam, Caliscopium et Ducatum Clarensae, una cum Insulis Cephalonia, Zacyntho, Cythera, Aegina et Sidra [cartographic material].]. https://collections.library.yale.edu/catalog/16618402.