Halacy, D. S. 1919- La nueva era de la energĂa solar / Daniel S. Halacy. - Buenos Aires : Ediciones Marymar, 1975. - 225 p. : ill. ; 23 cm. Translation of The coming age of solar energy. ISBN: $9.20 Subjects--Topical Terms: Solar energy. LC Class. No.: TJ 810 / H157n 1975 Dewey Class. No.: 621.47