Walker, E., Elsworth, S., & Nguyễn Văn Phước. (2003). Grammar practice for intermediate students: With answers (New ed.). Tp.HCM: Nxb Trẻ.
Trích dẫn kiểu ChicagoWalker, Elaine., Steve Elsworth, và Nguyễn Văn Phước. Grammar Practice for Intermediate Students: With Answers. New ed. Tp.HCM: Nxb Trẻ, 2003.
MLA引文Walker, Elaine., Steve Elsworth, và Nguyễn Văn Phước. Grammar Practice for Intermediate Students: With Answers. New ed. Tp.HCM: Nxb Trẻ, 2003.
警告:这些引文格式不一定是100%准确.