TY  - GEN
AU  - Kohli, D D 
AU  - Kohli, D D 
ED  -  Kohli R C
TI  - Textbook of Estimating and Costing 
SN  - 978-81-21-9033-25
PY  - 2020///
CY  - New Delhi
PB  - S Chand and Company PVT LTD
KW  - Textbook of Estimating and Costing
ER  -