@book{2390,
	author = {O'Brien, James J.},
	title = {CPM in Construction Management /},
	publisher = {Mcgraw-Hill (Tx),},
	year = {1993.},
	address = {[S.l.] :},
	edition = {4th ed. },
	url = {http://10.10.170.122:8080/browse/book/13802}
}