000 00295nam a2200097Ia 4500
008 140205s9999 xx 000 0 und d
245 _aSoil constraints on sustainable plant production in the tropics
260 _bTropical agricultre research center
_aJapan
_c1991
300 _a217
942 _2ddc
_cTR
999 _c5166
_d5166