Boswell, E. H. Quaternary aquifers in the Mississippi embayment / by E. H. Boswell, E. M. Cushing and R. L. Hosman. -- Washington : United States Government Printing Office, 1968 - 15 p. + map. -- (Geological Survey Professional Paper ; 448-E). Subjects--Topical Terms: AquíferosMississippi Universal Decimal Class. No.: 556.33(762)