@book{53120,
	author = {Brenes Córdoba, Alberto. and Trejos, Gerardo.},
	title = {Tratado de los contratos},
	publisher = {Editorial Juricentro},
	year = {1985.},
	address = {San José},
	edition = {1a ed., revisada y actualizada},
	note = {Includes index.}
}