TY  - BOOK
AU  - Chopra,H.S
TI  - Library conservation 
SN  - 81-7169-358-X
U1  - 025.84 
PY  - 1995///
CY  - New Delhi
PB  - Common Wealth
KW  - Preservation- library materials
KW  - Library science
N1  - Includes index
ER  -