@book{204,
	author = {Klein, Miguel Jorge},
	title = {Cursogramas},
	publisher = {Ediciones Macchi},
	year = {1998},
	address = {Buenos Aires :},
	edition = {5a. ed.},
	url = {https://biblioeco.unsa.edu.ar/pmb/images/libros/Cursogramas-l85337.jpg}
}