@book{800,
	author = {Steri-Oss A Bausch  and Steri-Oss A Bausch & Lomb Company},
	title = {Prosthetic manual /},
	publisher = {A Bausch & Lomb Company,},
	year = {(s.f.).},
	address = {USA :},
	note = {Texto en español. -- Fotocopias del original.}
}