George Orwell, Sonia Orwell, Ian Angus (1968). “The Collected Essays, Journalism and Letters of George Orwell: An age like this, 1920-1940”, Harvill Secker
George Orwell, Sonia Orwell, Ian Angus (1968). “The Collected Essays, Journalism and Letters of George Orwell: An age like this, 1920-1940”, Harvill Secker
George Orwell (2001). “The Complete Novels of George Orwell: Animal Farm, Burmese Days, A Clergyman's Daughter, Coming Up for Air, Keep the Aspidistra Flying, Nineteen Eighty-Four”, p.1306, Penguin UK
George Orwell, Peter Hobley Davison (2001). “Orwell and politics: Animal farm in the context of essays, reviews and letters selected from the complete works of George Orwell”, Penguin Modern Classics