000			00317nam a22001217a 4500
082			_a621.3746 _bPER _cL-11, P-4
100			_aPerrigo, A.E.B
245			_aElectricity supply meters _bPerrigo, A.E.B
260			_aLondon _bChapman & Hall Ltd _c1947
300			_avii,356 o. : _bill, ; _c20 cm.
650			_aMCE
942			_cBK
999			_c5984 _d5984