एपीए उद्धरण

Crystal, D. (2018). English as a global language. New York: Cambridge University Press.

शिकागो स्टाइल उद्धरण

Crystal, David. English As a Global Language. New York: Cambridge University Press, 2018.

एमएलए उद्धरण

Crystal, David. English As a Global Language. New York: Cambridge University Press, 2018.