Griffin, J., & Nguyễn Sanh Phúc. (2001). How to say it best: Choice worlds, phrases and model speeches for every occasion. H.: Văn hoá thông tin.
Chicago-tyylinen lähdeviittausGriffin, Jack, ja Nguyễn Sanh Phúc. How to Say It Best: Choice Worlds, Phrases and Model Speeches for Every Occasion. H.: Văn hoá thông tin, 2001.
MLA-viiteGriffin, Jack, ja Nguyễn Sanh Phúc. How to Say It Best: Choice Worlds, Phrases and Model Speeches for Every Occasion. H.: Văn hoá thông tin, 2001.
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