00478nam a2200169Ia 45000010006000000050017000060080041000230200015000640400013000790820020000921000018001122450089001302600053002193000011002725460007002837000018002905740020180228094202.0140507s9999    xx            000 0 und d  a8121939267  cPK-LaUMT  a 621.815bDHA-F  aDhawan, R. K.  aFundamentals of engineering drawingbfor polytechnicscR. K. Dhawan and Karun Dhawan  aNew Delhi,India:bS. Chand & Company Ltd.,c2012  a437 p.  aEN  aDhawan, Karun