000 00281nam a2200121Ia 4500
008 190719s9999 xx 000 0 und d
082 _a621.3 C851
100 _aCOTTON,H
245 0 _aELECTRICAL TECHNOLOGY
260 _aLONDON
_bPitman
_c1984
300 _a21X14
942 _cBK
_2DDC
999 _c45520
_d45520