APA引文

Eckstut, S. (2006). Focus on grammar: An integrated skills approach. new York, NY: Pearson/Longman.

Trích dẫn kiểu Chicago

Eckstut, Samuela. Focus On Grammar: An Integrated Skills Approach. new York, NY: Pearson/Longman, 2006.

MLA引文

Eckstut, Samuela. Focus On Grammar: An Integrated Skills Approach. new York, NY: Pearson/Longman, 2006.

警告：這些引文格式不一定是100％准確.