APA Alıntı

Koch, R. S. (2006). Focus on grammar: An integrated skills approach. New York, NY: Pearson/Longman.

Chicago Stili Alıntı

Koch, Rachel Spack. Focus On Grammar: An Integrated Skills Approach. New York, NY: Pearson/Longman, 2006.

MLA Alıntı

Koch, Rachel Spack. Focus On Grammar: An Integrated Skills Approach. New York, NY: Pearson/Longman, 2006.

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