http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Report of U.S. Geological Survey of Territories. Volume VII: Contributions to fossil flora of western territories. Part II
Geological and Geographical Survey of the Territories (U.S.)
1 online resource (xvi+366+illus. pages)
Includes detailed descriptions by species, with areas where found; and discussion of lignite beds and their relation to Tertiary fossils, with some data.
Electronic reproduction. [Bethesda, Md.] : ProQuest, 2014. digital, PDF file. ProQuest U.S. Executive Branch Documents Mode of access: World Wide Web via ProQuest website.