MLA

Philip, George, and London Geographical Institute Son. Daily Express War Map [Cartographic Material] / the London Geographical Institute KCL. Printed in Great Britain by George Philip & Son, 0AD. https://collections.library.yale.edu/catalog/15238296.

APA, 6th edition

Philip, G., & Son, L. G. I. (0 C.E.). Daily Express war map [cartographic material] / the London Geographical Institute KCL. [Maps]. Printed in Great Britain by George Philip & Son, https://collections.library.yale.edu/catalog/15238296.