Schoenberg, Irene, 1946- Focus on grammar. A basic course for reference and Practice / Irene E. Schoenberg. - 2nd ed. - New york : Longman, c2000. - xvi, 455 p. : ill. ; 28 cm. Includes index. ISBN: 9780201346763 LCCN: 99050164 Subjects--Topical Terms: English language--Textbooks for foreign speakers. LC Class. No.: PE1128 / .S34568 2000 Dewey Class. No.: 428.2/4 / S365