000 00469nam a2200193Ia 4500
005 20250619145220.0
008 250619s9999||||xx |||||||||||||| ||und||
020 _a0900162767
_c£2.50
040 _aMAIN
041 _aEnglish
082 _a621.381
_bPEN
100 _aPenfold, R. A.
245 0 _aElectronic security devices
260 _aLondon
_b; Bernard Babani
_c, 1990
300 _a102p.
650 _aElectronics
650 _aEngineering
942 _cBK
999 _c124392
_d124392