एपीए उद्धरण

Harding, K. (2007). English for specific purposes. New York: Oxford University Press.

शिकागो स्टाइल उद्धरण

Harding, Keith. English for Specific Purposes. New York: Oxford University Press, 2007.

एमएलए उद्धरण

Harding, Keith. English for Specific Purposes. New York: Oxford University Press, 2007.