Hong Kong and New territory.
MLA
Section, Great Britain. War Office. General Staff. Geographical. Hong Kong and New Territory. Army Map Service, U.S. Army, 1945. https://collections.library.yale.edu/catalog/15510652.
APA, 6th edition
Section, G. B. W. O. G. S. G. (1945). Hong Kong and New territory. [Topographic maps]. Army Map Service, U.S. Army, https://collections.library.yale.edu/catalog/15510652.