http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Late-Quaternary environments of the United States
2 volumes : illustrations, maps ; 29 cm.
v. 1. The late Pleistocene / Stephen C. Porter, editor -- v. 2. The Holocene / H.E. Wright, Jr., editor.