Charles Dickens (2012). “A Great Expectations in Plain and Simple English (Includes Study Guide, Complete Unabridged Book, Historical Context, Biography”, p.568, BookCaps Study Guides
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