Experiments in aeroplane photo surveying
By: by Major C.G. Lewis R.E. and Capt.H.G. Salmond.
Contributors: Salmond, H. G.
Series: Professional paper -- no. 19.
Publisher: Printed at the Office of the Trigonometrical Survey
Published: 1920
Place of publication: Dehra Dun
Language: eng
Number of pages: 53
Subjects: Photographic surveying.