MLA

Philip, George, and Son. Philips' Strategical Map of Mesopotamia & Asia Minor / George Philip & Son, Ltd. George Philips & Son, 0AD. https://collections.library.yale.edu/catalog/15827181.

APA, 6th edition

Philip, G., & S. (0 C.E.). Philips' strategical map of Mesopotamia & Asia Minor / George Philip & Son, ltd. [Maps]. George Philips & Son, https://collections.library.yale.edu/catalog/15827181.