@book{187155,
	author = {Dworkin, Gerald and Frey, R. G.},
	title = {La eutanasia y el auxilio médico al suicidio},
	publisher = {Cambridge University Press},
	year = {2000.},
	series = {A favor en contra},
	address = {Madrid},
	url = {http://www.loc.gov/catdir/description/cam029/98022810.html}
}