00301nam a2200109Ia 4500008004100000041000800041082001700049100002200066245005000088260004300138650001000181060110s9999    xx            000 0 und d  aeng  a547.7bBIL/T  aBILLWEYER, Fred W  aTextbook of polymer sciencecFred W Billweyer  bWiley - Inter Sciencec1942aNew Delhi  a547.7