TY  - BOOK
AU  - Birdie, G.S 
TI  - Text book of estimating and costing 
SN  - 9789352161133
U1  - 624.1042 BIR  
PY  - 2016///
CY  - Dhanpath rai 
PB  - New Delhi 
KW  - Civil Engineering
ER  -