@book{132198,
	author = {Yardin, Amaro Ramón and Demonte, Norberto Gabriel},
	title = {El analisis marginal},
	publisher = {Osmar D. Buyatti},
	year = {2012},
	address = {Buenos Aires},
	edition = {3a ed.},
	note = {La mejor herramienta para tomar decisiones sobre costos y precios}
}