TY  - BOOK
AU  - Singh, Gurcharan
AU  - Singh, Jagadish
TI  - A text book of estimating costing and valuation
U1  - 519.544 SI617e 1998 
PY  - 1998///
CY  - Delhi
PB  - Standard publishers distributors, 
KW  - Civil engineering
KW  - Costing
ER  -