000			00359 a2200145 4500
999			_c38511 _d40058
003			ISURa
008			170502b xxu||||| |||| 00| 0 eng d
041			_aEnglish
082			_a537.5 _bPHY
245			_aPhysics electronics
260			_c1986 _aNugegoda _bOpen University _g1986
300			_bill. _c20 cm. _a103 p.
650			_aPhysics _975832
942			_cSR _2ddc