एपीए उद्धरण

Mark Harrison. (2002). BEC higher pratice tests - advanced -casette 2. Oxford, NY: Oxford Univ. Press.

शिकागो स्टाइल उद्धरण

Mark Harrison. BEC Higher Pratice Tests - Advanced -casette 2. Oxford, NY: Oxford Univ. Press, 2002.

एमएलए उद्धरण

Mark Harrison. BEC Higher Pratice Tests - Advanced -casette 2. Oxford, NY: Oxford Univ. Press, 2002.