TY  - BOOK
AU  - Ponnamperuma, Cyril A
AU  - Cameron, A. G. W.
TI  - Interstellar communication: scientific perspectives
SN  - 0-395-17809-6
PY  - 1974///
CY  - Boston
PB  - Houghton Mifflin
KW  -  Extraterrestrial life
KW  -  Interstellar communication 
KW  - Astronomy and astrophysics thesaurus 
ER  -