000			00423nam a2200157Ia 4500
008			220216s9999 xx 000 0 und d
100			_aLivonnere H De
245		0	_aPresent and future of natural rubber
260			_bRevue Generale des Caoutchoucs et Plastiques _c1992
300			_a66-72
500			_aSource Year: 1994
650			_aProcessed products
650			_aRubber production
856			_uATA
942			_cJS
999			_c65629 _d65629