000 00405pam a2200157a 44500
008 160408b1979 xxu||||| |||| 00| 0 eng d
082 _a029.7
_bNOT
100 _aVan Rijsbergen, C. J.
245 1 _aINFORMATION RETRIEVAL
250 _a2nd
260 _aLondon
_bButterworths
_c1979
300 _aix,208
650 _aInformation Storage And Retrival Systems
964 _gCIRC
997 _aA64872 C
999 _c302464
_d302464