000 00283nam a2200121Ia 4500
008 220201s1979 xx 000 0 eng d
082 _bVAN
100 _aVan Rijsugan, C.J.
245 0 _aInformation retrival
260 _alondon
_bButterworths
_c1979
300 _a208
942 _2ddc
999 _c21900
_d21900