00271nam a2200109Ia 4500008004100000041000800041082002000049100001600069245003500085260003300120300000800153211209s1967    xx            000 0 und d  aeng  a621.381 N67 GUN  aGUNTHER W A  aPHYSICS OF MODERN ELECTRONICS   bDOVERPUBLICATIONS INC.c1967  a350