000 00274nam a2200109 4500
020 _a0471933767
082 _a029.7 WES/COM
100 _aWessel, A E
245 _aComputer aided information retrieval
_cby Wessel, A E
260 _aLondon
_bMelville pub.
_c1975
942 _cBK
999 _c379247
_d379247