00287nam a2200109Ia 450000500170000000800410001708200150005810000190007324500360009226000410012830000080016920260224040942.0260224s9999||||xx |||||||||||||| ||und||  a539.76 AGA  aAgarwal, S.K.  0aNon-conventional energy systems  aNew Delhi: A.P.H. Publicationsc2005  a160