Parker, Robert A. R.
An emission-line survey of the Milky Way / by Robert A.R. Parker, Theodore R. Gull, Robert P. Kirschner.
Interstellar hydrogen -- Observations.
Emission spectroscopy.
Emission spectroscopy. fast (OCoLC)fst00908768
Interstellar hydrogen. fast (OCoLC)fst00977540
Milky Way -- Observations.
Deep space -- Milky Way. fast (OCoLC)fst01240104
Observations. fast (OCoLC)fst01423822
Gull, Theodore R., author.
Kirshner, Robert P., 1949- author.