http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Surface water supply of the United States 1951
1 online resource (xi, 498 pages) : illustrations, map.
prepared under the direction of C.G. Paulsen.
"Prepared in cooperation with the States of Arizona, Colorado, New Mexico, Utah, and Wyoming, and other agencies."
"U. S Government Printing Office : O--1953"--Page 498.
Surface water supply of the United States 1951. Part 9, Colorado River Basin
Geological Survey water-supply paper ; 1213