000			00371nam a2200145Ia 4500
008			220216s9999 xx 000 0 und d
100			_aShearlaw P W
245		0	_aSurvey of commercial yields in relation to tapping systems
260			_bPlanters Bulletin _c1961
300			_a117-138
650			_aRubber
650			_aTapping system
650			_aYield
942			_cJS
999			_c70033 _d70033