@book{19890,
	author = {DUTTA B. N.},
	title = {ESTIMATING AND COSTING IN CIVIL ENGINEERING : THEORY AND PRACTICE INCLUDING SPECIFICATIONS AND VALUATION},
	publisher = {USB PUBL. PVT. LTD.},
	year = {2016, R.P. 2017},
	edition = {28},
	note = {S/SI/18-19/5011}
}