Hart, Cecil Augustus. creator text London New York Longmans, Green 1955 [New impression] monographic xx, 366 p. illus. (part col.) maps. 25 cm. With a foreword by Sir Alexander Gibb. Colored spectacles for use with the anaglyphs in pocket. 0 0 0 526_982000000000000_HAR Aerial photography MCE Photographic surveying 526.982 HAR