00351nam a2200133Ia 4500008004100000020001500041041001200056082001600068100001700084245005600101260003700157300000800194650001500202221030s9999    xx            000 0 und d  a8125904069  aEnglish  a105.23bMat  aS. B. Mathur 2aA Text Book of Engineering Drawingcby S. B. Mathur  bVikas Pub HouseaNew Delhic1999  a572  aMechanical