एपीए उद्धरण

Richards, J., & Long, M. (1988). Breakthrough: A Course in English Communication Practice. London: Oxford University Press.

शिकागो स्टाइल उद्धरण

Richards, J.C., और M.n Long. Breakthrough: A Course in English Communication Practice. London: Oxford University Press, 1988.

एमएलए उद्धरण

Richards, J.C., और M.n Long. Breakthrough: A Course in English Communication Practice. London: Oxford University Press, 1988.