@book{209905,
	author = {Angel, Allen R. and Petrie, Donna, R.},
	title = {Algebra intermedia},
	publisher = {Pearson/Educación},
	year = {c2008.},
	address = {México},
	edition = {7a ed.},
	note = {Includes indexes.
CD-ROM disponible en el libro.}
}