A simple method of surveying from air photographs
By: by Lieut. J. S. A. Salt.
Publisher: H. M. Stationery off. [printed by Harrison and sons, ltd.
Published: 1933
Place of publication: London
Language: eng
Number of pages: 145
Subjects: Photographic surveying.; Aerial photography.
Notes: Folded map and two "Stereoscopic testing card[s]" in pocket.