00289nam a2200109Ia 4500008004000000082001600040100002000056245002700076260004500103300001200148650001900160210210b1984   xxu||||| |||| 00| 0 eng d  a621.47 KEYS  aKEYES (John H).  aSolar energy handbook.  aCanada.bColes publishing Co, Ltd.c1984  axiv,273  aSolar Energy