00681nam a2200205Ia 4500003000900000008004100009020001800050040001600068080001600084100002500100245010400125260004800229300001300277650004100290650001400331650001600345942000700361999001500368952009200383IN-BaIIA211028s9999    xx            000 0 eng d  a0-521-29028-7  cIIA Library  a524.83bBER  aBerry, Michael99483 0aPrinciples of cosmology and gravitationcMichael Berry                                               aCambridgebCambridge University Pressc1976  ax, 179p.  aAstronomy and astrophysics thesaurus  aCosmology  aGravitation  cBK  c5457d5457  00104070aBANbBANcGENd1977-05-10l0o524.83/ BERp6103r2021-11-05w1977-05-10yBK