http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Results of spirit leveling in Nebraska, 1896 to 1913, inclusive
1 online resource (57 pages, I page of plate) : illustration.
Title from title screen (viewed June 30, 2014).
"Work done in cooperation with the State from 1911 to 1913, inclusive, through the Board of Regents of the University of Nebraska, C.S. Allen, President."
Marshall, R. B. (Robert Bradford), 1867-1949.
Bulletin (Geological Survey (U.S.)) ; no. 572