Παραπομπή APA

Nguyễn Thanh Ngọc. (2015). An investigation into the use of refusals in business correspondence in english.

Παραπομπή Chicago Style

Nguyễn Thanh Ngọc. An Investigation Into the Use of Refusals in Business Correspondence in English. 2015.

Παραπομπή MLA

Nguyễn Thanh Ngọc. An Investigation Into the Use of Refusals in Business Correspondence in English. 2015.

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