http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Ammonite faunas of the Sarten sandstone (Cretaceous), Luna County, New Mexico
iv, 17 pages, 5 unnumbered leaves of plates : illustrations, 1 map ; 28 cm.
U.S. Geological Survey bulletin ; 1641-B