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Quality of surface waters of the United States, 1963
Hudson Bay and upper Mississippi River basins, and Missouri River Basin
prepared under the direction of S.K. Love.
Prepared by the Geological Survey in cooperation with the States of Iowa, Kansas, Minnesota, Missouri, Montana, Nebraska, South Dakota, Wisconsin, and Wyoming, and with other agencies.
Includes bibliographical references and index.
Quality of surface waters of the United States, 1963. Parts 5-6, Hudson Bay and upper Mississippi River basins, and Missouri River Basin
Geological Survey water-supply paper ; 1949