@book{21324,
	author = {Panneerselvam, R},
	title = {Engineering economics},
	publisher = {PHI Learning},
	year = {2014},
	address = {New Delhi},
	edition = {2nd},
	url = {https://libgen.is/book/index.php?md5=D888EB88658C966629BF7CB451923A94}
}