00628nam a2200169ua 4500003001000000005001700010008004100027040003000068245011100098260006600209490005100275504003200326650002900358650001100387655001100398710004900409AR-SsjUCA20250716140624.0250228s1951    xxu           000 0 eng d  aAR-SsjUCAbspacAR-SsjUCA00aSoil survey manual /cby Soil Survey Staff, Bureau of Plant Industry, Soils, and Agricultural Engineering.  aWashington :bUnited States Department of Agriculture,c1951.0 aHandbook / Department of Agriculture ;vno. 18  aBibliografía: p. 443-445. 4aReconocimiento de suelos 4aSuelos 4aManual1 aEstados Unidos.bDepartment of Agriculture.