@book{107735,
	author = {Parker, Albert D. and Barnie, Donald S.,},
	title = {Planning and estimating heavy construction},
	publisher = {Mc Graw Hill, Book Company,},
	year = {1984},
	address = {New York :},
	edition = {1a ed. },
	note = {Incluye glosario e índice.}
}
