000			00339nam a2200157Ia 4500
008			190201s9999 xx 000 0 und d
020			_a9.79E+12
082			_a523
082			_b01 BAS
100			_a"Basu, Baidyanath"
245		3	_aAn Introduction To Astro
260			_aNew Delhi
260			_bPHI
260			_c2004
300			_a489
999			_c41461 _d41461