Citazione APA

Sahanaya, W., & Hughes, T. (2002). IELTS preparation and practice: Practice test with annotated answer key. Oxford University press.

Stile di citazione Chicago

Sahanaya, Wendy, e Terri Hughes. IELTS Preparation and Practice: Practice Test with Annotated Answer Key. Oxford: Oxford University press, 2002.

Citazione MLA

Sahanaya, Wendy, e Terri Hughes. IELTS Preparation and Practice: Practice Test with Annotated Answer Key. Oxford University press, 2002.