Space Age Astronomy Symposium, Deutsch, A. J., & Klemperer, W. B. (1962). Space age astronomy: 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. New York: Academic Press.
Παραπομπή Chicago StyleSpace Age Astronomy Symposium, Armin J. Deutsch, and Wolfgang B. Klemperer. Space Age Astronomy: 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. New York: Academic Press, 1962.
Παραπομπή MLASpace Age Astronomy Symposium, Armin J. Deutsch, and Wolfgang B. Klemperer. Space Age Astronomy: 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. New York: Academic Press, 1962.