Langan, John,. English skills / John Langan. - 6th ed. - New York : McGraw-Hill, c1997. - xvi, 590 p. : col. ill. ; 24 cm. - The Langan series . - Langan, John, 1942- Langan series. . Includes index. Subjects--Topical Terms: English language--Rhetoric. LC Class. No.: PE1408 / .L318 1997 Dewey Class. No.: 808/.042