000			00538nam a2200193Ia 4500
001			0000014889
008			231110s9999 xx 000 0 und d
020			_a057200740X
090			_a621.3817 _bCUN _c1970
100			_aCunningham, John Edward,
245	0	0	_aSecurity electronics _cJohn E. Cunningham
250			_a1st ed.
260			_aIndianapolis _bH. W. Sams _cc1970
300			_a159 p. _billus. _c22cm
504			_aIncludes index
650			_aElectronic security systems
700			_axx, 686 p. _bill. _c24 cm
700	0		_aTitle
999			_c44669 _d44669