000			00474nam a2200193Ia 4500
001			CATREF010278
008			110517s9999 xx 000 0 und d
041			_aeng
082			_a029.7
100			_aVickery, B C
245			_aOn retrieval system theory
260			_aLondon _bButterworths _c1965
300			_axii, 191p. _c22 cm.
546			_bRoman
650			_aInformation retrieval
650			_aInformation retrieval system
906			_atext
942			_cBook
999			_c126813 _d126813