00996nam0-2200325---450-99000848994040332120080404121825.01-56022-330-8000848994FED01000848994(Aleph)000848994FED0100084899420070322d2006----km-y0itay50------baengUSa-------001yySoil and water conservation handbookpolicies, practices, conditions and termsPaul W. UngerNew YorkHaworth Food & Agricultural Products Pressc2006XIV, 248 p.21 cmSustainable food, fiber, and forestry systemsSuoloConservazione631.4520itaUnger,Paul W.80161ITUNINARICAUNIMARCBK99000848994040332160 631.46 B 1910688FAGBCFAGBCSoil and water conservation handbook731020UNINA