APA引文

Đặng Thị Phương Trang. (2012). A Study on Ways Expressing Politeness in Bad news Business Letters in English. Khoa Anh CN.

Trích dẫn kiểu Chicago

Đặng Thị Phương Trang. A Study On Ways Expressing Politeness in Bad News Business Letters in English. Khoa Anh CN, 2012.

MLA引文

Đặng Thị Phương Trang. A Study On Ways Expressing Politeness in Bad News Business Letters in English. Khoa Anh CN, 2012.

警告：这些引文格式不一定是100％准确.