Trorey. Lyle G. Handbook of aerial mapping and photogrametry / Lyle G. Trorey. Wi th a foreward by W. W. William - [2d ed.] - Cambridge [Eng.] : University Press, 1952 - 180 p. : ill.; 25 cm Subjects--Topical Terms: Photographic surveying--------Photography, Aerial--------Cartography-------- Dewey Class. No.: 526.98 TRO