TY  - BOOK
AU  - Rangawala, S C  .
AU  - Rangawala,K K  .
AU  - Rangawala,KS  .
TI  - Elements of estimating and costing(professional practice) basic text book for engineering students / 
U1  - 692.5 
PY  - 1995///
CY  - New Delhi,Tulsi : 
PB  - Charotar book stall , 
ER  -