U.S. Dept. of the Interior, Geological Survey ; U.S. Govt. Print. Off.,
Surface water supply of the United States, 1958. Part 5, Hudson Bay and upper Mississippi River basins
Geological Survey water-supply paper ;
Geological Survey (U.S.)
Prepared by the Geological Survey in cooperation with the States of Illinois ... [and others]
Surface water supply of the United States, 1958. Part 5, Hudson Bay and upper Mississippi River basins