Practical air navigation and the use of the aeronautical charts of the U. S. Coast and geodetic survey
By: by Thoburn C. Lyon, associate cartographic engineer.
Contributors: Lyon, Thoburn Cassady, 1896-
Series: Special publication no. 197.  3d (1939) ed.
Publisher: U.S. Govt. print. off.
Published: 1939
Place of publication: Washington
Language: eng
Number of pages: 199
Subjects: Navigation (Aeronautics)
Other titles: Air navigation.
Notes: Bibliography: p. 195.
At head of title: U. S. Department of commerce.  Harry L. Hopkins, secretary.  Coast and geodetic survey.   Leo Otis Colbert, director ...
"Publications of the Civil aeronautics authority": p. 179-181.