APA引文

Nguyễn,Thị Thảo. (2016). A study of language expressions used as politeness strategies in english refusal business letters. ĐHNN.

Trích dẫn kiểu Chicago

Nguyễn,Thị Thảo. A Study of Language Expressions Used As Politeness Strategies in English Refusal Business Letters. ĐHNN, 2016.

MLA引文

Nguyễn,Thị Thảo. A Study of Language Expressions Used As Politeness Strategies in English Refusal Business Letters. ĐHNN, 2016.

警告：這些引文格式不一定是100％准確.