00467nam a2200157Ia 4500008004100000020001500041082001700056100001700073245005300090250000600143260005100149300000800200650003800208650003400246653002900280170901s1998    xx            000 0 und d  a8170970474  a621.47bS48S  aSinghal, O.P 0aSolar Energy TechnologybPrinciple and Practices  a1  aAllahabadbTechnical Publishers of Indiac1998  a344  aEngineering and allied operations  aTechnology (Applied sciences)  aSolar energy engineering