http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
guide to the strawn & canyon series of the Pennsylvanian system in Palo Pinto County, Texas
Prepared for the regional meeting: American Association of Petroleum Geologists [and] Southwestern Federation of Geological Societies, Mineral Wells, Texas, October 22-25, 1958.
Occasional publication of the North Texas Geological Society