The threshold of space : the proceedings of the Conference on Chemical Aeronomy - Conference on Chemical Aeronomy (1956 : Cambridge, Mass.); Zelikoff, M. (Murray), 1922-; Air Force Cambridge Research Laboratories (U.S.). Geophysics Research Directorate (New York : Symposium Publications Division, Pergamon Press, 1957)
"Sponsored by Geophysics Research Directorate, Air Force Cambridge Research Center, Air Research and Development Command .. coordinated by Wentworth Institute."
Keywords: Atmosphere, Upper -- Congresses; Atmosphere -- Congresses