TY  - BOOK
AU  - Marshall, John
TI  - Conservation Manual
U1  - 570.2 
PY  - 1923///
CY  - Calcutta 
PB  - Govt Print.  
KW  - Monuments -- Conservation and restoration
UR  - https://lucknowdigitallibrary.com/publications/conservation-manual-by-marshall-john
ER  -