000			00400nam a2200157Ia 4500
003			NIELib
008			211019s9999||||xx |||||||||||||| ||und||
020			_a04087092 4
082			_a029 _bRIJ
100			_aRijsbergen, C.J.
245			_aInformation Retrieval
260			_bButterworth, _c1979. _aLondon:
300			_aix,208p.; _c21 cm
650		0	_aLibrary & Information Science
942			_2ddc _cLM
999			_c40979 _d40979