Ponnamperuma, Cyril A <br/><br/>
Interstellar communication  scientific perspectives 
C. A. Ponnamperuma and A. G. W. Cameron 
 - Boston  Houghton Mifflin  1974 
 - 226p. 
<br/><br/><label>ISBN: </label>0-395-17809-6 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Extraterrestrial life<br/> Interstellar communication <br/>Astronomy and astrophysics thesaurus 
<br/><br/><label>Universal Decimal Class. No.: </label>52-37  / PON