000			00306nam a2200133Ia 4500
090			_c2660 _d2660
100			_aDe,K.K.
245			_aText BK on astronomy. _cK.K. De
250			_a3rd ed.
260			_aCalcutta: _bBK Syndicate, _c1964.
300			_a327 p.: _bdia; _c24 cm.
650			_aAstronomy
942			_cBK
999			_c2559 _d2568