TY  - BOOK
AU  - Van Rijsbergen, C. J.
TI  - Information retrieval
SN  - 0-408-70717-8
U1  - 25.5 
PY  - 1975///
CY  - London
PB  - Butterworth
KW  - Library Science
KW  - General works -- Encyclopedias
N1  - Gift; library science, information science, reference management
ER  -