Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.