000 00270nam a2200109Ia 4500
008 220201s1961 xx 000 0 eng d
100 _aGibbens, EHH
245 0 _aIntroduction to elec drawing
260 _bLondon : Blackie Sons Ltd.
_c1961
300 _a63
942 _2ddc
999 _c72101
_d72101