00345nam a2200121Ia 4500008004100000020001800041041000800059100001900067245008300086250001000169260003600179300000800215211209s2006    xx            000 0 und d  a81-312-0331-x  aeng  aSORENSEN, BENT  aRENEWABLE ENERGY: ITS PHYSICS, ENGINEERING USE ENVIRONMENTAL IMPACTS, ECONOMY   a3 ed.  aNEW DELHIbACADEMIC PRESSc2006  a928