000			00408pam a2200157a 44500
008			160408b1979 xxu||||| |||| 00| 0 eng d
082			_a029.7 _bV26i2
100			_aVan Rijsbergen, C. J.
245	1		_aINFORMATION RETRIEVAL
250			_a2nd
260			_aLondon _bButterworths _c1979
300			_aix,208
650			_aInformation Storage And Retrieval Systems
964			_gCIRC
997			_aA79491 C
999			_c302465 _d302465