Skidelsky,Robert. (2012). How much is enough?: Money and the good life. Penguin Books.
Chicago Style aipamenaSkidelsky,Robert. How Much Is Enough?: Money and the Good Life. UK: Penguin Books, 2012.
MLA aipamenaSkidelsky,Robert. How Much Is Enough?: Money and the Good Life. Penguin Books, 2012.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.