एपीए उद्धरण

(1998). Headway video: Activity book (Elementary). Oxford: Oxford Univ. Press.

शिकागो स्टाइल उद्धरण

Headway Video: Activity Book (Elementary). Oxford: Oxford Univ. Press, 1998.

एमएलए उद्धरण

Headway Video: Activity Book (Elementary). Oxford: Oxford Univ. Press, 1998.