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1. Quality of surface waters of the United States 1967 : Pt.7-8 lower Mississippi River Basin and western gulf of Mexico Basins.

by Geological Survey (United States).

Material type: book Book; Format: print Publisher: Washington : U.S. Govt. Print. Off., 1972Availability: No items available

2. Surface water supply of the United States 1961-65 pta: st. lawrence

by United States. Geological Survey.

Call number: USGS wap-1912 Material type: book Book; Format: print Publisher: Washington : U.S. Govt Print. Off, 1971Availability: No items available