000 00339nam a2200145Ia 4500
008 170519s9999 xx 000 0 und d
041 _aEnglish
082 _a530.8/EMF
100 _aB. SARAF
245 _aCONSTANT AND VARYING
260 _bVIKAS PUBLISHING HOUSE PVT LTD
_aJAIPUR
300 _c141P
650 _aPHYSICS
942 _cBK
999 _c77679
_d77679