Charlotte Bronte, Emily Bronte, Anne Bronte (2009). “The Bronte Sisters: Three Novels: Jane Eyre; Wuthering Heights; and Agnes Grey (Penguin Classics Deluxe Edition)”, p.490, Penguin
"Ten rules for writing fiction" by Elmore Leonard, Diana Athill, Margaret Atwood, Roddy Doyle, Helen Dunmore, Geoff Dyer, Anne Enright, Richard Ford, Jonathan Franzen, Esther Freud, Neil Gaiman, David Hare, PD James, AL Kennedy, www.theguardian.com. February 19, 2010.