The Penguin Book of Twentieth-Century Speeches The Penguin Book of Twentieth-century Essays The Penguin Book of Twentieth-Century Essays The Penguin book of historic speeches The Penguin Book of the Twentieth Century in Poetry The Penguin book of modern speeches the companion to twentieth-century opera The Penguin dictionary of twentieth century history the penguin book of american short stories Fly :: the unsung hero of twentieth-century science /