000 00279nam a2200133Ia 4500
100 _aB.P.B. Publishion
650 _aGeneral
942 _cBK
654 _aBuild
245 _aBuild Your Own Intercoms
260 _bB.P.B Pub.
_aDelhi
_c1980
300 _a44
546 _aENGLISH
999 _c30136
_d30136