00261nam a2200109Ia 4500008004100000041000800041082002000049100001500069245001500084260004400099300000800143211209s1968    xx            000 0 und d  aeng  a621.385 N68 ATK  aATKINSON G  aTELEPHONY   aLONDONbSIR ISAAC PITMAN AND SONSc1968  a526