TY  - BOOK
AU  - Becker,Joseph
AU  - Hayes,Robert M.
TI  - Information storage and retrieval : tools, elements, theories
U1  - 029.7 BEC  
PY  - 1963///.
CY  - New York : 
PB  - John Wiley & Sons, Inc., 
KW  - Information retrieval
N1  - Includes index.
ER  -