000 00309nam a2200133Ia 4500
008 220216s9999 xx 000 0 und d
100 _aPeng Ng Ai
245 0 _aDensity of planting
260 _bPlanters Bulletin
_c1993
300 _a87-99
650 _aPlanting
650 _aTapping systems
942 _cJS
999 _c56800
_d56800