TY  - BOOK
AU  - Lock ,R Northwood  .
TI  - Manual of library economy / 
SN  - 0208015388
U1  - 020 
PY  - 1977///
CY  - London : 
PB  - Clive Bingley , 
KW  - LIBRARY SCIENCE
N1  - Includes bibliographical references and index
ER  -