000 00266nam a2200109Ia 4500
008 220201s1997 xx 000 0 eng d
100 _aSINHA, UMESH
245 0 _aANTINNA & WAVE PROPAGRATION
260 _aDELHI
_bSATYA PRAKASHAN
_c1997
300 _a939
942 _2ddc
999 _c67527
_d67527