Polio, C., & Friedman, D. A. (2017). Understanding, evaluating, and conducting second language writing research. Routledge.
芝加哥风格引文Polio, Charlene, 与 Debra A. Friedman. Understanding, Evaluating, and Conducting Second Language Writing Research. Abingdon, Oxon OX: Routledge, 2017.
MLA引文Polio, Charlene, 与 Debra A. Friedman. Understanding, Evaluating, and Conducting Second Language Writing Research. Routledge, 2017.
警告：这些引文格式不一定是100％准确.