@book{171732,
	author = {Edwards, C. H. and Penney, David E., coaut. },
	title = {Ecuaciones diferenciales elementales con aplicaciones  /},
	publisher = { Prentice-Hall Hispanoamericana,},
	year = {1986},
	address = {México  :},
	note = {Titulo original: Elementary differential equations with applications}
}