LEADER 00000nam 2200253 a 4500 001 0197543 003 UkHlHU 007 t 008 001501 1 1979 000 eng 040 UkHlHU 050 4 Q 360 V2 100 0 Van Rijsbergen, C. J.,|d1943- 245 00 Information retrieval. 250 2nd edition. 260 London :|bButterworths,|c1979. 300 208p. 650 0 Information theory. 650 0 Library science. 650 0 Information storage and retrieval systems. 946 020 absent -- ISBN check required
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