Interstellar ionized hydrogen.

Bibliographic Details
Corporate Authors:	National Radio Astronomy Observatory (U.S.), Arecibo Ionospheric Observatory
Other Authors:	Terzian, Yervant 1939- (ed.)
Format:	Book
Language:	English
Published:	New York W. A. Benjamin 1968.
Subjects:	H II regions (Astrophysics) > Congresses.