Roget, Peter Mark, 1779-1869. Roget's thesaurus of synonyms and antonyms / Peter Mark Roget ; enlarged by John Lewis Roget & Samuel Romilly Roget. - New ed. - London : Roydon Publishing Co. Ltd., c1972 - various p. ; 23 cm. Includes index. LCCN: 93176856 Subjects--Topical Terms: English language--Synonyms and antonyms. Dewey Class. No.: 423.1 / ROR