MLA

Homann Erben (Firm), Mayer, Tobias, 1723-1762. Septem provinciae seu Belgivm Foederatvm quod generaliter Hollandia [cartographic material] : audit speciali mappa delineatum adhibitis auxilium observationibus astronomieis nec non mensurationibus Snellii, Muschenbrokii, etc. / auctore Tobia Mayero .... a. 1748. https://collections.library.yale.edu/catalog/2065696.

APA, 6th edition

Homann Erben (Firm), & Mayer, Tobias, 1723-1762. (a. 1748)[Septem provinciae seu Belgivm Foederatvm quod generaliter Hollandia [cartographic material] : audit speciali mappa delineatum adhibitis auxilium observationibus astronomieis nec non mensurationibus Snellii, Muschenbrokii, etc. / auctore Tobia Mayero ...]. https://collections.library.yale.edu/catalog/2065696.