TY  - BOOK
AU  - Lancaster,F.Wilfrid
AU  - Fayen,Emily Gallup
TI  - Information retrieval: on-line 
SN  - 0471512354
PY  - 1973///
CY  - Los Angeles
PB  - Melville Publishing
KW  - Information retrieval
KW  - Data base searching
N1  - 'A Wiley Becker & Hayes series book.'; Includes bibliographical references
ER  -