http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Surface water supply of the United States, 1909
1 online resource (126 unnumbered pages) : illustrations.
"Prepared under the direction of M.O. Leighton."
Rio Grande Watershed (Colo.-Mexico and Tex.)
Surface water supply of the United States, 1909, Part VIII, Western Gulf of Mexico
Water-supply paper (Washington, D.C.) ; no. 268