APA-viite

(2003). Developing writing: Writing skills practice book for EFL beginning/intermediate level. United States: Office of English Language Program.

Chicago-tyylinen lähdeviittaus

Developing Writing: Writing Skills Practice Book for EFL Beginning/intermediate Level. United States: Office of English Language Program, 2003.

MLA-viite

Developing Writing: Writing Skills Practice Book for EFL Beginning/intermediate Level. United States: Office of English Language Program, 2003.

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