Communication with extraterrestrial intelligence (CETI)
Sagan, Carl,1934-1996.
Cambridge, Mass. London M.I.T. Press
1973
'English-language version of proceedings of a conference held at the Byurakan Astrophysical Observatory, Yerevan, U.S.S.R., Sept. 5-11, 1971, sponsored by the U.S. National Academy of Sciences and Akademiiâ nauk S.S.S.R' - title page verso
Includes index
Life on other planets.
Interstellar communication.