"*GPO: 1999--454-767/60418. Reprint 1999." English. Legend and table also in Spanish. Includes text, location map, and inset and detail map of Diablo East. "Do not use this map for navigation." Text and ill. on verso. Available also through the Library of Congress Web site as a raster image.
United States. National Park Service
1999
<a rel="nofollow" class="external free" href="https://www.loc.gov/item/99444712/">https://www.loc.gov/item/99444712/</a>