%0 E-Resource %0 Map %0 Print %E Great Britain. War Office. General Staff. Geographical Section %E United States. Army Map Service %I War Office %D 1942 %C London %G English %B Its [G. S. G. S.] %T Portugal 1:50,000. %U http://www.lib.uchicago.edu/e/collections/maps/indexes/G6690-s50-G7-index.jpg