Roget, Peter Mark, 1779-1869. Roget's thesaurus : of English words and phrases. - New ed. completely revised / by Susan M. Lloyd, updated and abridged. - Harmondsworth : Penguin, 1984, c1982. - xiv, 775 p. ; 20 cm. + pbk. - Penguin reference books . ISBN: 0140511245 Subjects--Topical Terms: English language--Synonyms and antonyms. Dewey Class. No.: 423