@book{201189,
	author = {Campbell, Neil A.},
	title = {Biology},
	publisher = {Benjamin/Cummings Pub. Co.},
	year = {c2005.},
	series = {Benjamin/Cummings series in the life sciences},
	address = {Menlo Park, Calif.},
	edition = {7th ed.},
	note = {CD-ROM disponible en el libro.}
}