TY  - BOOK
AU  - Hayes, Robert M, ed. series
AU  - Lancaster, F Wilfrid
TI  - Information retrieval systems
SN  - 471512400
CY  - New York
KW  - Awareness function
KW  - Information science - retrieval system system
KW  - Information systems
KW  - Library information sciences
KW  - Subject indexing
ER  -