000 00326nam a2200097Ia 4500
008 220204s9999 xx 000 0 und d
082 _aNR:041967
_bIRS
245 0 _aReview of the present position and prospects for the newer rubbers: Proceedings of a symposium by IRSG, Brazil, 1967
260 _aLondon
_bIRSG
_c1967
942 _cBK
999 _c21359
_d21359