एपीए उद्धरण

Yule, G. (2006). Oxford practice grammar with answers: Advanced. Oxford: Oxford University Press.

शिकागो स्टाइल उद्धरण

Yule, George. Oxford Practice Grammar With Answers: Advanced. Oxford: Oxford University Press, 2006.

एमएलए उद्धरण

Yule, George. Oxford Practice Grammar With Answers: Advanced. Oxford: Oxford University Press, 2006.