000 00354nam a22001217a 4500
008 140331b xxu||||| |||| 00| 0 eng d
082 _a621.3
100 _aW.HEHRE , FREDERICK .
_911717
245 _aELECTRICAL GIRCUITS AND MACHINERY /
_cFREDERICK W.HEHRE , GEORGE T.HARNESS .
260 _aLONDON ,
_c1940 .
300 _a513 P.
942 _2ddc
_cBK
999 _c15111
_d15111