Jakeman, V., & McDowell, C. (2001). IELTS: Practice test. Plus (1a. ed.). Pearson Education Limited.
芝加哥风格引文Jakeman, Vanessa, 与 Clare McDowell. IELTS: Practice Test. Plus. 1a. ed. Essex: Pearson Education Limited, 2001.
MLA引文Jakeman, Vanessa, 与 Clare McDowell. IELTS: Practice Test. Plus. 1a. ed. Pearson Education Limited, 2001.
警告：这些引文格式不一定是100％准确.