Sahanaya, W., & Hughes, T. (2002). IELTS preparation and practice: Practice test with annotated answer key. Oxford University press.
芝加哥风格引文Sahanaya, Wendy, 与 Terri Hughes. IELTS Preparation and Practice: Practice Test with Annotated Answer Key. Oxford: Oxford University press, 2002.
MLA引文Sahanaya, Wendy, 与 Terri Hughes. IELTS Preparation and Practice: Practice Test with Annotated Answer Key. Oxford University press, 2002.
警告：这些引文格式不一定是100％准确.