Ponnamperuma, Cyril, 1923- Interstellar communication; scientific perspectives / [edited by] Cyril Ponnamperuma [and] A.G.W. Cameron.

Ponnamperuma, Cyril, 1923-

Interstellar communication; scientific perspectives / [edited by] Cyril Ponnamperuma [and] A.G.W. Cameron.

Life on other planets.

Interstellar communication.

Astronomy

Man Communication with extraterrestrial life

Cameron, A. G. W. (Alastair Graham Walter), 1925- joint author.