00418nam a22001457a 450000500170000001000130001702000150003003500130004503700340005808200100009210000190010224500590012126000510018030000410023120180905175415.0  aB-120661  a8188689173  aB-120661  bOverseas Press India Pvt.Ltd.  a523.1  aBerry, Michael  aPrinciples of cosmology and gravitationcMichael Berry  aNew DelhibOverseas Press India Pvt.Ltd.c2005  a179p. (It include index)c22cm (pbk)