TY  - BOOK
AU  - Kaplan,S.A.
AU  - Kaplan,S.A.
TI  - Extraterrestrial civilization : problems of interstellar communication
U1  - 523.013 KAP  
PY  - 1971///.
CY  - Jerusalem : 
PB  - Israel Program for Scientific Translations, 
KW  - Interstellar communication
KW  - Radio astronomy
ER  -