एपीए उद्धरण

Richards, J. C. (2013). Four corners: Student's book. Cambridge: Cambridge University Press.

शिकागो स्टाइल उद्धरण

Richards, Jack C. Four Corners: Student's Book. Cambridge: Cambridge University Press, 2013.

एमएलए उद्धरण

Richards, Jack C. Four Corners: Student's Book. Cambridge: Cambridge University Press, 2013.