APA-viite

Hien, X. T. T. A Study on Expressions of Politeness Strategies in Barack Obama's 27 Greatest Speeches Introduced in the Book "We Are the Change We Seek: The Speeches of Brack Obama".

Chicago-tyylinen lähdeviittaus

Hien, Xa Thi Thu. A Study On Expressions of Politeness Strategies in Barack Obama's 27 Greatest Speeches Introduced in the Book "We Are the Change We Seek: The Speeches of Brack Obama".

MLA-viite

Hien, Xa Thi Thu. A Study On Expressions of Politeness Strategies in Barack Obama's 27 Greatest Speeches Introduced in the Book "We Are the Change We Seek: The Speeches of Brack Obama".

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