00381nam a2200145Ia 4500008004100000020001500041041001200056082001600068100001800084245005600102260003700158300000800195650001700203700001500220221030s9999    xx            000 0 und d  a8125918779  aEnglish  a105.23bDwi  aD. N. Dwivedi 0aEngineering Economicscby D. N. Dwivedi, A. Dwivedi  bVikas Pub HouseaNew Delhic2005  a321  aBE Economics  aA. Dwivedi