एपीए उद्धरण

edited by Barbara Kroll. (1990). Second language writing: Research insights for the classroom. Cambridge [England],New York: Cambridge University Press.

शिकागो स्टाइल उद्धरण

edited by Barbara Kroll. Second Language Writing: Research Insights for the Classroom. Cambridge [England],New York: Cambridge University Press, 1990.

एमएलए उद्धरण

edited by Barbara Kroll. Second Language Writing: Research Insights for the Classroom. Cambridge [England],New York: Cambridge University Press, 1990.