000 00328nam a2200145Ia 4500
082 _a604.2
_bDHA
100 _aDhawan
245 _aTextbook of engineering drawing.
250 _aRev.ed.2
260 _aLudhiana
_bKatsan Pub. House
_c1971
300 _aviii,140p.
700 _aKumar
890 _aIndia
999 _c33916
_d33916
650 _aMechanical drawing
650 _aEngineering drawings