@book{2130,
	author = {Spina, Carlos E. and Gimenez, Enrique M.},
	title = {Cuanto vale realmente una empresa},
	publisher = {Osmar D. Buyatti},
	year = {1999},
	address = {Buenos Aires :},
	url = {https://170.210.207.44/pmb/images/libros/L86123.jpg}
}