Koch, Rachel Spack. Focus on grammar 5 / 5 / Rachel Spack Koch - England: Pearson, 2000. - xv, 234 p.: ill.; 28 cm. Includes index. ISBN: 0134579623 Subjects--Topical Terms: English language--Textbooks for foreign speakersEnglish language--Grammar--Problems exercises etc LC Class. No.: PE1128