TY  - BOOK
AU  - Houghton Bernard
AU  -  Convey John
TI  - On line-information retrieval system :  An introductory mannual to principals and practice
U1  - D65,8(2:55), L7 
PY  - 1977///
CY  - London
PB  - Clive Bingley      
KW  - ENGINEERING
ER  -