Daniels, Farrington, 1889-1972. Direct use of the sun's energy. - New Haven, Yale University Press, 1964, 9th printing 1977. - xvii, 374 p. illus., maps. 21 cm. - Trends in science, v. 5. . - Trends in science ; v. 5. . Includes bibliographies. ISBN: 0300003994 Subjects--Topical Terms: Solar energy. LC Class. No.: TJ810 / .D28