000 00313nam a2200121Ia 4500
008 220204s9999 xx 000 0 und d
082 _a025.4
_bFAI
100 _aFairthorne, R A
245 0 _aTowards information retrieval
260 _aLondon
_bButterworths
_c1961
650 _aInformation retrieval
942 _cBK
999 _c20826
_d20826