000			00305nam a22001337a 4500
003			OSt
008			200609b ||||| |||| 00| 0 eng d
020			_a9788131709771
082			_a005.74
245			_aModern Information Retrieval
260			_aNoida _bPearson _c2018
300			_a513p.
942			_2ddc _cBK
999			_c46536 _d46536