00422nam a2200133Ia 4500008004100000041000800041082001400049100002000063245009500083250001400178260005000192650002700242700001900269230711s9999||||xx |||||||||||||| ||und||  aENG  a621bAB-R  aAbbasi,Shahid A 0aRenewable energy sources and their environmental impactbShahid A. Abbasi, Naseema Abbasi  a1st . Ed.  c2003aNew DelhibPHI Learning Private Limited  aMechanical Engineering  aAbbasi,Naseema