एपीए उद्धरण

Lock, G. (1999). Functional English Grammar: An introduction for second language teachers. Cambridge: Cambridge University Press.

शिकागो स्टाइल उद्धरण

Lock, Graham. Functional English Grammar: An Introduction for Second Language Teachers. Cambridge: Cambridge University Press, 1999.

एमएलए उद्धरण

Lock, Graham. Functional English Grammar: An Introduction for Second Language Teachers. Cambridge: Cambridge University Press, 1999.