TY  - BOOK
AU  - Heaps,H.S.
TI  - Information retrieval: computational and theoretical aspects 
T2  - Library and information science
SN  - 0123357500
U1  - 027.9 
PY  - 1978///
CY  - New York
PB  - Academic Press, 
KW  - SISTEMAS DE ALMACENAMIENTO Y RECUPERACION DE INFORMACION
ER  -