000 00300nam a2200121Ia 4500
008 180721s9999 xx 000 0 und d
100 _aD.J. GREENLAND; R. LAL
245 0 _aSOIL CONSERVATION AND MANAGEMENT IN THE HUMID TROPICS
260 _bNil
260 _c1989
365 _b0.00
942 _cBK
999 _c165075
_d165075