MLA

for reiselivet i Norge, Landslaget. Turistkart over Norge = Tourist Map of Norway = Carte De Norvège Pour Les Tourists = Touristenkarte über Norwegen. National Travel Association of Norway, 0AD. https://collections.library.yale.edu/catalog/15471536.

APA, 6th edition

for reiselivet i Norge, L. (0 C.E.). Turistkart over Norge = Tourist map of Norway = Carte de Norvège pour les tourists = Touristenkarte über Norwegen. [Maps]. National Travel Association of Norway, https://collections.library.yale.edu/catalog/15471536.