@book{24924,
	author = {Lora, Eduardo and Buitrago D, Luis Javier,},
	title = {Técnicas de medición económica /},
	publisher = {Alfaomega,},
	year = {2008.},
	address = {Bogotá :},
	edition = {4.},
	note = {Incluye tabla de contenido.}
}