http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Bibliography of North American invertebrate paleontology, being report upon publications that have hitherto been made upon invertebrate paleontology of North America, including West Indies and Greenland
Geological and Geographical Survey of the Territories (U.S.)
Electronic reproduction. [Bethesda, Md.] : ProQuest, 2014. digital, PDF file. ProQuest U.S. Executive Branch Documents Mode of access: World Wide Web via ProQuest website.