00268nam a2200109Ia 4500008004100000041000800041100002000049245003700069250001000106260003400116300000800150211209s2007    xx            000 0 und d  aeng  aAVADHANULU, M N  aTEXTBOOK OF ENGINEERING PHYSICS   a8 ed.  aNEW DELHIbS CHAND & COc2007  a758