एपीए उद्धरण

Bourke, K. (2006). Verbs and tenses: Pre - intermediate. Oxford: Oxford Univ. Press.

शिकागो स्टाइल उद्धरण

Bourke, Kenna. Verbs and Tenses: Pre - Intermediate. Oxford: Oxford Univ. Press, 2006.

एमएलए उद्धरण

Bourke, Kenna. Verbs and Tenses: Pre - Intermediate. Oxford: Oxford Univ. Press, 2006.