Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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

Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.