June 1974 Issue [Wraparound] Sources Download PDF Adjust Share by Margaret Davies, Subscribe or log in to continue reading. Tags 20th century An assessment of solar energy as a national energy resource (Book) Book reviews Books D.S.(Daniel Stephen) Halacy George Gamow Harry E. Thomason Harry Jack Lee, Jr. Thomason Reviews Solar energy Solar energy research: a multidisciplinary approach (Book) United States Adjust Share