520 Deu S Deutsch, Armin J ed. Space age astronomy edited by Armin J. Deutsch [and] Wolfgang B. Klemperer. New York, Academic Press, 1962. 531 p. ilus. gráficos 24 cm ´´An International Symposium sponsored by Douglas Aircraft Company, Inc. August 7-9, 1961 at the California Institute of Technology in conjunction with the XI general assembly of the International Astronomical Union.´´