@book{78879,
	author = {Kolman, Bernard. and Busby, Robert C.},
	title = {Estructuras de matemáticas discretas para la computación},
	publisher = {Prentice-Hall Hispanoaméricana,},
	year = {1997.},
	address = {México, D.F. :},
	note = {Trad. de : Discrete mathematical structures 3 ed. de 1996.}
}