Ionospheric radio propagation.

Year:	1948
Document Type:	UIUU
Issuing Agency:	U.S. Govt. print. off.,
SUDOC:	C 13.4:462
Series:	United States. National Bureau of Standards. Circular
Report Number:	462
Subjects:	Electric waves
	Radio waves
	Atmosphere, Upper
	Aeronomia
Links:	https://hdl.handle.net/2027/uiug.30112106923433
	https://hdl.handle.net/2027/mdp.39015077295486