Practical air navigation and the use of the aeronautical charts of the U.S. Coast and Geodetic Survey
By: by Thoburn C. Lyon.
Contributors: U.S. Coast and Geodetic Survey.
Edition: 3rd (1939) ed.
Series: Special publication -- no. 197; Special publication (U.S. Coast and Geodetic Survey) -- no. 197.
Publisher: U.S. Govt. Print. Off.
Published: 1939
Place of publication: Washington
Language: eng
Number of pages: 199
Subjects: Navigation (Aeronautics)
Notes: At head of title: U.S. Department of Commerce. Harry L. Hopkins, secretary.  Coast and Geodetic Survey. Leo Otis Colbert, director.

Bibliography: p. 195.