Michael Duckworth

Proficiency Masterclass: Student's Book

By Kathy Gude, Michael Duckworth, Gude, Kathy, Duckworth, Michael

Success at First Certificate

By Robert O'Neill, Michael Duckworth, Kathy Gude, O'Neill, Robert, Duckworth, Michael, Gude, Kathy

Proficiency Masterclass Teacher's Book

By Kathy Gude, Michael Duckworth

Straight to Advanced Online Workbook Pack

By Michael Duckworth

Straight to Advanced Workbook with Answers Pack

By Michael Duckworth

Success at First Certificate

By Robert O'Neill, Michael Duckworth, Kathy Gude

Proficiency Masterclass: Workbook

By Kathy Gude, Michael Duckworth

Proficiency Masterclass: Workbook with Answers

By Kathy Gude, Michael Duckworth