Langan, John Sentence skills form A : a workbook for writers 7th ed. Langan, John - Boston : McGraw-Hill, c2003. - xvii, 599 pages ; 23 cm. Includes index. ISBN: 13:978-0-07-238132-0. Subjects--Topical Terms: Dewey Class. No.: Circ. 420 L272s 2003