TY  - BOOK
AU  - Cleverdon, C. W.
ED  - International congress on scientific information
TI  - ˆThe ‰critical appraisal of information retrieval systems
PY  - 1968///
CY  - Μ.
KW  - Информационно-поисковые системы
KW  - nlr_sh1
KW  - Ч231.172
KW  - rubbk
N2  - Библиогр.: с. 55-56
ER  -