000 00396nam a2200121Ia 4500
008 180413s9999 xx 000 0 und d
020 _a9290811382 (Pbk)
245 0 _aSustaining Soil Productivity In Intensive African Agriculture
260 _bWageningen : Cta 1995.
300 _a124
546 _aEng
690 _aSoil Productivity ; Land Management ; Soil Constraints ; Technologies ; Research.
999 _c12029
_d12029