Trout, T. J. Garcia-Castillas, I. G. Hart, W. E. Soil-water engineering field and laboratory manual - Department of Agricultural and Chemical Engineering Colorado State University Colorado 1982 - 193p. fig., table, chart, ill. Nat. Bib. No.: 6332 Subjects--Topical Terms: Agriculture Universal Decimal Class. No.: 631.4 / TRO