000 00291nam a2200121Ia 4500
008 220216s9999 xx 000 0 und d
245 0 _aPotassium requirements of rubber
260 _bRubber Board Bulletin
_c1985
300 _a8-May
650 _aPottasium
650 _aRubber
942 _cJS
999 _c65371
_d65371