@book{20772,
	author = {Álvarez Arango, Alberto and Ruiz R. Héctor},
	title = {Matemáticas financieras},
	publisher = {: McGraw-Hill},
	year = {, 1999},
	address = {Bogotá, Colombia},
	edition = {Segunda Edición },
	note = {Incluye índice.}
}