@book{20497,
	author = {Blank, Leland T., and Tarquin, Anthony J.,},
	title = {Ingeniería económica /},
	publisher = {McGraw-Hill Interaméricana S.A. DE C. V.,},
	year = {2012.},
	address = {México :},
	edition = {Séptima edición.}
}