000 00336 a2200133 4500
082 _a621.38928
_bMAR
090 _c12805
_d18629
100 _aMarston, R.M.
245 _aElectronic alarm circuits manual
260 _aNew Delhi
_bBPB Publications
_c1993
_g1993
300 _a123p.
_c21.5cm.
650 _aSecurity electronic
942 _cL
999 _c41170
_d41170