एपीए उद्धरण

Allsop Jake, & Aspinall Patricia. (2001). Cambridge practice test for BEC 2: Level two. Business English Certificate. Tp. Hồ Chí Minh: Nxb. Trẻ.

शिकागो स्टाइल उद्धरण

Allsop Jake, और Aspinall Patricia. Cambridge Practice Test for BEC 2: Level Two. Business English Certificate. Tp. Hồ Chí Minh: Nxb. Trẻ, 2001.

एमएलए उद्धरण

Allsop Jake, और Aspinall Patricia. Cambridge Practice Test for BEC 2: Level Two. Business English Certificate. Tp. Hồ Chí Minh: Nxb. Trẻ, 2001.