TY  - BOOK
AU  - Bracewell, Ronald N
TI  - The Galactic club: intelligent life in outer space
SN  - 0-7167-0353-X
PY  - 1975///
CY  - San Francisco
PB  - W. H. Freeman
KW  -  Cosmology
KW  -  Galaxy distribution 
KW  - Astronomy and astrophysics thesaurus 
ER  -