Henry David Thoreau (2014). “Citizen Thoreau: Walden, Civil Disobedience, Life Without Principle, Slavery in Massachusetts, A Plea for Captain John Brown”, p.68, Graphic Arts Books
BookCaps, Johann Wolfgang von Goethe (2012). “Faust in Plain and Simple English: First Part of the Tragedy: (A Modern Translation and the Original Version): BookCaps Study Guide”, p.50, BookCaps Study Guides
Philip Massinger (1830). “The plays of Philip Massinger: adapted for family reading, and the use of young persons, by the omission of objectionable passages”, p.200