00346nam a2200121 a 450000500170000000800410001704100080005810000200006624500550008626400390014130000080018065000360018820260717091754.0260717s2001    ii            000 0 eng d  aeng1 aBasu Baidyanath13aAn Introduction to Astrophysics /cBasu Baidyanath 1aNew Delhi :bPrintics Hall,c2001.  a489 4aAn Introduction to Astrophysics