@book{88041,
	author = {Heidegger, Martin and Krell, David Farrell.},
	title = {Nietzsche},
	publisher = {HarperSanFrancisco},
	year = {1991-},
	address = {San Francisco (California, Estados Unidos)},
	url = {http://www.loc.gov/catdir/description/hc044/90049074.html}
}