APA ציטוט

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

Trích dẫn kiểu Chicago

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

ציטוט MLA

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