00301nam a2200109Ia 4500008004100000020001500041041000800056100001500064245006900079260003500148300000800183211209s1975    xx            000 0 und d  a0412124009  aeng  aLEDWITH,A.  aMOLECULAR BEHAVIOUR AND THE DEVELOPMENT OF POLIMERIC MATERIALS.   aLONDONbCHAPMAN AND HALLc1975  a553