Focus on grammar : an integrated skills approach - Schoenberg, Irene, 1946- (White Plains, NY : Pearson Longman, 2006)
Student book ; Student book A ; Student book B ; Student book with audio CD ; Student book A with audio CD ; Student book B with audio CD / Irene E. Schoenberg -- Teacher's manual / Lida Baker -- Workbook ; Workbook A ; Workbook B / Sameula Eckstut.
Keywords: English language -- Textbooks for foreign speakers; English language -- Grammar -- Problems, exercises, etc