@book{321,
	author = {Wajchman, Mauricio and Wajchman, Bernardo},
	title = {El proceso decisional y los costos},
	publisher = {Ediciones Macchi},
	year = {1997},
	address = {Buenos Aires :},
	edition = {2a. ed.},
	url = {https://t2.gstatic.com/images?q=tbn:ANd9GcQ18NUH94BINDi9_4SoFFL9nOUj0WxgHONk_tgX5FqTXjCiuIGQ}
}