APA Citation

Tiberio, S. C., & Silvia Carolina Tiberio. (2006). Focus on grammar 3: An integrated skills approach teacher's manual. New York, NY: Pearson/Longman.

Trích dẫn kiểu Chicago

Tiberio, Silvia Carolina, và Silvia Carolina Tiberio. Focus On Grammar 3: An Integrated Skills Approach Teacher's Manual. New York, NY: Pearson/Longman, 2006.

MLA Citation

Tiberio, Silvia Carolina, và Silvia Carolina Tiberio. Focus On Grammar 3: An Integrated Skills Approach Teacher's Manual. New York, NY: Pearson/Longman, 2006.

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