Pham, T. X. T., & Phan, V. H. (2011). An investigation into refusal strategies to requests by American speakers of English and Vietnamese learners of English. Đà Nẵng: The University of Da Nang.
Trích dẫn kiểu ChicagoPham, Thi Xuan Thao., và Văn Hoà Phan. An Investigation Into Refusal Strategies to Requests By American Speakers of English and Vietnamese Learners of English. Đà Nẵng: The University of Da Nang, 2011.
MLA引文Pham, Thi Xuan Thao., và Văn Hoà Phan. An Investigation Into Refusal Strategies to Requests By American Speakers of English and Vietnamese Learners of English. Đà Nẵng: The University of Da Nang, 2011.
警告：這些引文格式不一定是100％准確.