एपीए उद्धरण

Vai, M. (2003). The heart of the matter: High-intermediate listening, speaking and critical thinking. Tp.HCM: Nxb Tp.HCM.

शिकागो स्टाइल उद्धरण

Vai, Marjorie. The Heart of the Matter: High-intermediate Listening, Speaking and Critical Thinking. Tp.HCM: Nxb Tp.HCM, 2003.

एमएलए उद्धरण

Vai, Marjorie. The Heart of the Matter: High-intermediate Listening, Speaking and Critical Thinking. Tp.HCM: Nxb Tp.HCM, 2003.