Charlotte Bronte, Emily Bronte, Anne Bronte (2009). “The Bronte Sisters: Three Novels: Jane Eyre; Wuthering Heights; and Agnes Grey (Penguin Classics Deluxe Edition)”, p.258, Penguin
John Wilmot, John Adlard (2002). “The Debt to Pleasure: John Wilmot, Earl of Rochester, in the Eyes of His Contemporaries and in His Own Poetry and Prose”, p.103, Taylor & Francis
Interview with Rob Walker in San Francisco, California, as part of The Silicon Genesis Project with Stanford University, silicongenesis.stanford.edu. November 12, 2002.
Charlotte Bronte, Emily Bronte, Anne Bronte (2009). “The Bronte Sisters: Three Novels: Jane Eyre; Wuthering Heights; and Agnes Grey (Penguin Classics Deluxe Edition)”, p.213, Penguin
Charlotte Bronte, Emily Bronte, Anne Bronte (2009). “The Bronte Sisters: Three Novels: Jane Eyre; Wuthering Heights; and Agnes Grey (Penguin Classics Deluxe Edition)”, p.202, Penguin