00641nam a2200205Ia 4500008004100000020001500041082001900056100002100075245005800096260004000154300000800194650004100202650003400243653001000277653001200287700001200299942001200311999001700323952009500340170901s1977    xx            000 0 und d  a0471994731  a631.4913bG77S  aGreenland, D. J. 0aSoil Conservation and Management in the Humid Tropics  aNew YorkbJohn Wiley and Sonsc1977  a283  aAgriculture and related technologies  aTechnology (Applied sciences)  aSoils  aTropics  aLal, R.  2ddccBK  c13580d13580  00102ddc4070aRAUbRAUd2017-10-18l0o631.4913 G77Sp22298r2017-10-18w2017-10-18yBK