00804nam a2200217Ia 4500003000900000008004100009020001800050040001600068080001500084100002400099245015200123260004800275300001400323490004200337650001800379650001400397650001900411942000700430999001700437952013200454IN-BaIIA211028s9999    xx            000 0 eng d  a0-521-56689-4  cIIA Library  a524.8bCOL  aColes, Peter922128 0aIs the universe open or closed?bthe density of matter in the universecPeter Coles and George Ellis                                                 aCambridgebCambridge University Pressc1997  axv, 236p.  aCambridge lecture notes in physics; 7  aAstronomy980  aCosmology  aUniverse91987  cBK  c12631d12631  00104070aBANbBANcGENd1998-08-27eEDS   g1660.68l0o524.8/ COLp13548r2021-11-05v1660.68w1998-08-27yBKGRs. 1660.68