Citazione APA

Walker, E., Elsworth, S., & Nguyễn Văn Phước. (2001). Grammar practice for pre - intermediate students. Tp.HCM: Nxb Trẻ.

Stile di citazione Chicago

Walker, Elaine., Steve Elsworth, e Nguyễn Văn Phước. Grammar Practice for Pre - Intermediate Students. Tp.HCM: Nxb Trẻ, 2001.

Citazione MLA

Walker, Elaine., Steve Elsworth, e Nguyễn Văn Phước. Grammar Practice for Pre - Intermediate Students. Tp.HCM: Nxb Trẻ, 2001.

Attenzione: Queste citazioni potrebbero non essere precise al 100%.