Direct Use of the Sun's Energy, 29226
Ballantine, 1980. 9th ptg. 12Mo Softcover. 271pp. Text is clean on unmarked, uncreased pages. Hinges are intact, textblock is square with pointed corners. Moderate overall shelf/timewear, coverwear, cover edge and cornerwear; light foxing on inner covers and textblock edges, page patina throughout.




