000 00276nam a2200121Ia 4500
008 211209s1975 xx 000 0 und d
041 _aeng
082 _a668.402 02 N75 CHA
100 _aCHARLES A H
245 _aH P PLASTICS AND ELASTOMERS
260 _c1975
300 _a81
999 _c13171
_d13171