Information about maps is usually included within the text. If a formal citation is need to include more information, a note is most common. In a note, list the following:
Cartographer if known, title of the map in italics, scale and size if known, publication details or location of the map. Undated maps consulted online should include an access or revision date.
N: Samuel de Champlain, cartographer, Carte geographique de la Nouvelle Franse, 1612, 43 x 76 cm, in The History of Cartography, vol. 3, Cartography in the European Renaissance (University of Chicago Press, 2007), fig. 51.3.
N: Satellite view of Chicago, Google Maps, accessed May 5, 2024 https:/www.google.com/maps