@book{13156,
	author = {Kerstein, Samuel J., and ebrary, Inc.},
	title = {Kant's search for the supreme principle of morality},
	publisher = {Cambridge University Press,},
	year = {2002.},
	address = {Cambridge, U.K. ;},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10014586}
}