000 00301nam a2200109Ia 4500
008 210616s9999 xx 000 0 und d
100 _aJon M. Duff
245 0 _aFundamentals of engineering drawing
260 _c1993
650 _aEngineering and Allied Operations
_bMechanical Engineering
942 _cBK
999 _c5433
_d5433