Pilots' radio manual
By: by Reeder G. Nichols, chief, Radio and electrical section, Civil aeronautics administration.
Contributors: Nichols, Reeder Glenn, 1904-
Series: Its Civil aeronautics bulletin,; no. 29
Publisher: U.S. Govt. print. off.
Published: 1940
Place of publication: Washington
Language: eng
Number of pages: 98
Subjects: Radio in aeronautics.
Notes: At head of title:  United States Dept. of commerce. Civil aeronautics administration, Washington, D.C.
"Much of the material presented already has been published in various publications issued by the former Bureau of air commerce and the Civil aeronautics authority.  Such material has, however, has been adapted for the purposes of this publication."--Pref.
"Technical definitions":  p. 93-98.