000 00417nam a2200145Ia 4500
008 220216s9999 xx 000 0 und d
100 _aMahmud Bin Haji A W
245 0 _aRock phosphate sources and their potential as fertilisers in rubber cultivation
260 _bPlanters Bulletin
_c1978
300 _a147-156
650 _aFertilisers
650 _aRock phosphate
650 _aRubber cultivation
942 _cJS
999 _c67136
_d67136