000 00272nam a2200121Ia 4500
008 151205s9999||||xx |||||||||||||| ||und||
020 _c0
100 _aKHAN,R.M. AND GHOSH S.C.
245 _aASTRONOMY
260 _c1965
_bSHREEDHAR
650 _aASTRONOMY
942 _cBK
999 _c203197
_d203197