00439nam a22001457a 4500020001800000082002200018100001700040245003900057250001200096260003900108300002500147500002000172650007100192700003000263  a9788130912158  a620.004250285 PAL  aPal, Subrata  aComputer-aided engineering drawing  a7th ed.  aNew Delhi, IndiabViva Booksc2009  aviii, 297 p.bill. ;  aIncludes index.  a1. Engineering design --Data processing. 2. Computer-aided design.  aBhattacharyya, Madhusudan