APA aipamena

Schoenberg, I., & Irene Schoenberg; Jay Maurer. (2006). Focus on grammar: An integrated skills approach. White Plains, NY: Pearson Longman.

Chicago Style aipamena

Schoenberg, Irene, và Irene Schoenberg; Jay Maurer. Focus On Grammar: An Integrated Skills Approach. White Plains, NY: Pearson Longman, 2006.

MLA aipamena

Schoenberg, Irene, và Irene Schoenberg; Jay Maurer. Focus On Grammar: An Integrated Skills Approach. White Plains, NY: Pearson Longman, 2006.

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