Hart, Cecil Augustus. Air photography applied to surveying. With a foreword by Sir Alexander Gibb. - [New impression] - London, New York, Longmans, Green 1955 - xx, 366 p. illus. (part col.) maps. 25 cm. Colored spectacles for use with the anaglyphs in pocket. Subjects--Topical Terms: Aerial photography.MCEPhotographic surveying. Dewey Class. No.: 526.982 / HAR