Hoàng Thị Thanh Trinh. (2004). An investigation into politeness in letters of invitation composed by American and Vietnamese.
Chicago-tyylinen lähdeviittausHoàng Thị Thanh Trinh. An Investigation Into Politeness in Letters of Invitation Composed By American and Vietnamese. 2004.
MLA-viiteHoàng Thị Thanh Trinh. An Investigation Into Politeness in Letters of Invitation Composed By American and Vietnamese. 2004.
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