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New and renewable sources of energy /

By El-Hinnawi, Essam. Dublin : Tycooly International Publishing , 1983 . viii, 144 p. : 29 cm. . 0907567584

Dublin : Tycooly International Publishing , 1981 . xiv, 219 p. : 29 cm. .

Dublin : Tycooly International Publishing, 1981 . xiv, 337p. : 28 cm.. 090756707X | 0907567029