Schoenberg, Irene, 1946- Focus on grammar. an integrated skills approach / 1 : Irene E. Schoenberg, Jay Maurer. - 3rd ed. - 1 v. (various pagings) : ill. (some col.), col. maps ; 28 cm. + 1 CD-ROM (4 3/4 in.) with workbook. Includes index. ISBN: 9780132455916 (pbk) 0132455919 0132546477 0132546485 0132546493 0132546507 LCCN: 2011014126 Subjects--Topical Terms: English language--Textbooks for foreign speakers.English language--Grammar--Problems, exercises, etc. LC Class. No.: PE1128 / .S3456824 2011 Dewey Class. No.: 428.24/Sch632