http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
6 unnumbered pages, 240 pages : illustrations
by Arthur G. Leonard, Earle J. Babcock [and] Leonard P. Dove.
In cooperation with the School of Mines, College of Engineering, University of North Dakota.
Bulletin (North Dakota Geological Survey) ; 4