@book{7351,
	author = {Valdiviezo Ramirez, Mayra Rosybel},
	title = {Centrales Telefónicas IP /},
	publisher = {Universidad de San Pedro Sula, },
	year = {2009.},
	address = {Honduras, San Pedro Sula :},
	url = {https://drive.google.com/open?id=0BwkeKKAhXnTOc0xxWkx2SVNzNFk}
}