000 00303 a2200121 4500
245 1 _aPrinciples of information retrieval
_cby M. Kochen
260 _aCalifornia
_bMelville
_c1974
650 _aInformation retrieval
100 1 _aKochem, M.
300 _a202 p.
080 _a007
_bK 76 P
901 _a142800
999 _c57875
_d57875