00316nam a2200121Ia 4500008004100000041001200041082002000053100002300073245003200096260004100128300001300169650001200182231217s9999    xx            000 0 und d  aEnglish  a541.2254  BIL;8  aBillmeyer, Fred W. 0aTextbook of polymer science  c1962bJohn wiley and SonsaNew Delhi  axiv, 601  apolymer