Cite

Railways in Spain and Portugal [cartographic material].

MLA

Section, Great Britain. War Office. General Staff. Geographical. Railways in Spain and Portugal [Cartographic Material]. Army Map Service, U. S. Army, 1943. https://collections.library.yale.edu/catalog/15487319.

APA, 6th edition

Section, G. B. W. O. G. S. G. (1943). Railways in Spain and Portugal [cartographic material]. [Maps]. Army Map Service, U. S. Army, https://collections.library.yale.edu/catalog/15487319.