00275nam a2200109Ia 4500008004100000041000800041082002200049100002000071245003000091260003600121300000800157211209s1989    xx            000 0 und d  aeng  a621.37919 N89 NOR  aNORTON, HARRY N  aHAND BOOK OF TRANSDUCERS   aNEW JERSEYbPRENTICE HALLc1989  a554