Scale 1:3,960,000. Includes list of administrative divisions to the Hsien level and location map. Available also through the Library of Congress Web site as a raster image. AACR2
United States. Central Intelligence Agency
1969
<a rel="nofollow" class="external free" href="https://www.loc.gov/item/74692434/">https://www.loc.gov/item/74692434/</a>