00468nam a2200193Ia 4500 OSt 20220531110822.0 210210b1967 xxu||||| |||| 00| 0 eng d AL English 621.47 HALC HALACY (D S). 39619 Coming age of solar energy Delhi. Sterling Publishers Pvt Ltd. 1967 241 Solar Energy 39620 CC00066 ddc BK 109318 109318 0 0 0 0 Electronics AL AL Electronics 2021-02-17 4.00 0 621.47 HALC 042321 2021-02-17 00:00:00 2021-02-17 BK 0 0 0 0 Engineering AL AL Engineering 2021-02-17 0.00 0 621.47 HALC CC00066 2021-02-17 00:00:00 2021-02-17 CC