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.  2d (1938) ed.
Publisher: U.S. Govt. print. off.
Published: 1938
Place of publication: Washington
Language: eng
Number of pages: 185
Subjects: Navigation (Aeronautics)
Other titles: Air navigation.
Notes: Bibliography: p. 182.
At head of title: U. S. Department of commerce.  Daniel C. Roper, secretary.  Coast and geodetic survey.  Leo Otis Colbert, director ...
"In the present edition the original text has been expanded and made more complete": p. ii.
"Publications of the Bureau of air commerce": p. 165-166.