Scale ca. 1:25,800; 1 in. equals approx. 0.4 mile. Title from verso. "1968 O--312-976." Includes text and map of Washington, D.C. and vicinity. Col. illus. on verso. Available also through the Library of Congress Web site as a raster image. DCP AACR2
United States. National Park Service; United States. Government Printing Office
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