Dyfyniad APA

Walker, E., & Nguyễn Văn Phước. (2003). Grammar practice for Pre- intermadiate student's. Trẻ.

Dyfyniad Arddull Chicago

Walker, Elaine., và Nguyễn Văn Phước. Grammar Practice for Pre- Intermadiate Student's. Trẻ, 2003.

Dyfyniad MLA

Walker, Elaine., và Nguyễn Văn Phước. Grammar Practice for Pre- Intermadiate Student's. Trẻ, 2003.

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