MLA

McNally, Rand, and Company. Lowell Thomas' War Map of the World [Cartographic Material] : [Compliments of] Sunoco. Rand McNally & Co., 0AD. https://collections.library.yale.edu/catalog/15509715.

APA, 6th edition

McNally, R., & C. (0 C.E.). Lowell Thomas' war map of the world [cartographic material] : [compliments of] Sunoco. [Thematic maps]. Rand McNally & Co., https://collections.library.yale.edu/catalog/15509715.