http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Fresh and saline ground-water zones in the Punjab region, West Pakistan
West Pakistan Water and Power Development Authority
1 online resource (iii, 24 pages, 3 pages of plates) : illustrations, maps.
"Prepared in cooperation with the West Pakistan Water and Power Development Authority under the auspices of the U.S. Agency for International Development."
Contributions to the hydrology of Asia and Oceania
Geological Survey water-supply paper ; 1608-I