Cite

Map of Europe and adjoining portions of Africa and Asia / prepared especially for the National Geographic Magazine ... by the Matthews-Northrup Works, Buffalo, N.Y.

MLA

Works, Matthews-Northrup. Map of Europe and Adjoining Portions of Africa and Asia / Prepared Especially for the National Geographic Magazine ... by the Matthews-Northrup Works, Buffalo, N.Y. National Geographic Society, 1915. https://collections.library.yale.edu/catalog/15826760.

APA, 6th edition

Works, M.-N. (1915). Map of Europe and adjoining portions of Africa and Asia / prepared especially for the National Geographic Magazine ... by the Matthews-Northrup Works, Buffalo, N.Y. [Maps]. National Geographic Society, https://collections.library.yale.edu/catalog/15826760.