000			00375nam a2200121 4500
245			_aTextbook on merchannized information retrieval _cAllen Kent
100			_aKent, Allen
250			_a2nd ed.
260			_aNew York _bInterscience Publishers _c1962
300			_axx,371p.:ill.,plates.tables.; 21cm.-
490			_aLibrary Science and documentation; no.3
082			_a029.7 _bKEN
999			_c62147 _d62147