TY  - BOOK
AU  - Chakraborti, M  .
TI  - Estimating, costing, specification and valuation in civil engineering / 
SN  - 81-85304-36-X
U1  - 692.5 
PY  - 1992///
CY  - Calcutta : 
PB  - M Chakraborti , 
ER  -