http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Hydrogeology of the Triassic rocks of Maryland
iv, 37 pages : illustrations, maps (1 folded in pocket) ; 28 cm.
by L. J. Nutter ; prepared in cooperation with the Geological Survey, United States Department of the Interior.
Report of investigations (Maryland Geological Survey) ; no. 26