00306nam a2200109Ia 4500008004100000082002000041100001900061245002800080260002900108300002300137490003600160260720b        |||||||| |||| 00| 0 eng d  a530.11bP297.TR  aPathria, R. K.  aTheory of relativityb/  aDelhi:bHindustan,c1963  axiii, 290p. Index.  aInternational monographs series