Coles, Peter <br/><br/>
Is the universe open or closed?  the density of matter in the universe 
Peter Coles and George Ellis                                                
 - Cambridge  Cambridge University Press  1997 
 - xv, 236p. 
 - Cambridge lecture notes in physics; 7 .
<br/><br/><label>ISBN: </label>0-521-56689-4 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy<br/>Cosmology<br/>Universe
<br/><br/><label>Universal Decimal Class. No.: </label>524.8  / COL