Cita APA

Hoàng Thị Thanh Trinh. (2004). An investigation into politeness in letters of invitation composed by American and Vietnamese.

Chicago Style Citation

Hoàng Thị Thanh Trinh. An Investigation Into Politeness in Letters of Invitation Composed By American and Vietnamese. 2004.

Cita MLA

Hoàng Thị Thanh Trinh. An Investigation Into Politeness in Letters of Invitation Composed By American and Vietnamese. 2004.