@book {80143,
	title = {Ethics : inventing right and wrong},
	year = {1990},
	publisher = {Penguin},
	organization = {Penguin},
	abstract = {<p>An insight into moral skepticism of the 20th century. The author argues that our every-day moral codes are an {\textquoteright}error theory{\textquoteright} based on the presumption of moral facts which, he persuasively argues, don{\textquoteright}t exist. His refutation of such facts is based on their metaphysical {\textquoteright}queerness{\textquoteright} and the observation of cultural relativity.</p>
},
	isbn = {0141960094},
	author = {J. L. Mackie}
}
