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.73, Taylor & Francis
William Cowper, James Thomson (1832). “The Works of Cowper and Thompson: Including Many Letters and Poems Never Before Published in this Country. With a New and Interesting Memoir of the Life of Thomson”, p.94