Heggen, Philip M. Solar concentrating mirrors : a technology coming of age / by Philip M. Heggen. - 1st ed. - 200 pages : illustrations ; 29 cm. ISBN: 0937041149 LCCN: 88024541 Subjects--Topical Terms: Solar collectors. LC Class. No.: TJ812 / .H44 1988 Dewey Class. No.: 621.47