TY  - BOOK
AU  - Birdie, G.S.
AU  - Birdle, J.S.
AU  - Birdle, Renu
TI  - A text book of estimating costing
U1  - 624.1042 
PY  - 1981///
CY  - New Delhi
PB  - Dhanpat Rai Publishing
KW  - Work measurement
KW  - Rate analysis
KW  - Material test
KW  - Rural hourse
ER  -