Skidelsky,Robert. (2012). How much is enough?: Money and the good life. Penguin Books.
Chicago-viite (17. p.)Skidelsky,Robert. How Much Is Enough?: Money and the Good Life. UK: Penguin Books, 2012.
MLA-viite (9. p.)Skidelsky,Robert. How Much Is Enough?: Money and the Good Life. Penguin Books, 2012.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.