000 00303nam a2200121Ia 4500
008 160710s1952 xx 000 0 und d
082 _a621.3004 BIS
100 _aBISHOP,CALVIN C
245 _aELECTRICAL DRAFITING AND DESIGN
260 _bMCGRAW-HILL BOOK CO.
_c1952
300 _a267
942 _2ddc
_cB
999 _c20604
_d20604