एपीए उद्धरण

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

शिकागो स्टाइल उद्धरण

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

एमएलए उद्धरण

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