Citazione Stile APA (7a Edizione)

Kroll, B. (1990). Second language writing: Research insights for the classroom. Cambridge University Press.

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

Kroll, Barbara. Second Language Writing: Research Insights for the Classroom. Cambridge University Press, 1990.