APA-viite

Rachel Spack Koch. (1997). Focus on grammar (Workbook): An advanced course for reference and practice,Ngữ pháp Longman trình độ cao cấp. Tp. HCM: Nxb. Tp. HCM.

Chicago-tyylinen lähdeviittaus

Rachel Spack Koch. Focus On Grammar (Workbook): An Advanced Course for Reference and Practice,Ngữ Pháp Longman Trình độ Cao Cấp. Tp. HCM: Nxb. Tp. HCM, 1997.

MLA-viite

Rachel Spack Koch. Focus On Grammar (Workbook): An Advanced Course for Reference and Practice,Ngữ Pháp Longman Trình độ Cao Cấp. Tp. HCM: Nxb. Tp. HCM, 1997.

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