Ionosphere and radio transmission conditions, with special reference to observing and reporting service of National Bureau of Standards [and with bibliography].
Publication Title:
Ionosphere and radio transmission conditions, with special reference to observing and reporting service of National Bureau of Standards [and with bibliography].
Display Title:
Ionosphere and radio transmission conditions, with special reference to observing and reporting service of National Bureau of Standards [and with bibliography].
Corporate Agency Authors:
National Bureau of Standards
Sort Author:
National Bureau of Standards
Date:
Dec. 9, 1939
Publish Date ISO Format:
1939-12-09T00:00:00Z
Publication Start:
19391209
Publication End:
19391209
Corporate/Agency Author:
National Bureau of Standards
Publication month:
1
Publication year:
1939
SuDoc number:
C 13.16:575
Description:
cover title, 23 p. 5 pl. 4°
Notes:
(Letter circular LC-575.) [Processed. Replaces Letter circular 499.]
Notes:
(Letter circular LC-575.) [Processed. Replaces Letter circular 499.] † Distribution Made by Issuing Office.