Thomas, Richard E. Feasibility of overland-flow treatment of feedlot runoff / 1974 Richard E. Thomas - Washington : U.S. Government Printing Office, 1974 - v, 28 p. : ill. ; 28 cm. - Environmental protection series . EPA-660/2-74-062 Subjects--Topical Terms: Feedlot runoffPollution Dewey Class. No.: 628.16846