TY  - BOOK
AU  - Bernard Houghton and John Convey 
AU  - Houghton, Bernard    Convey, John 
TI  - Online Information Retrieval Systems :(an introductory Manual to Principles & practice_troductory manuals to principles & practice 
SN  - 0851572456 
U1  - 025.302854, HOU  
PY  - 1976///
CY  - London
PB  - Clive Bingley
KW  - Information Retrieval
KW  - Systems
ER  -