Citazione Stile APA (7a Edizione)

Willis, D., & Willis, J. R. (2007). Doing task-based teaching. Oxford University Press.

Citazione stile Chigago Style (17a edizione)

Willis, Dave, e Jane R. Willis. Doing Task-based Teaching. Oxford: Oxford University Press, 2007.

Citatione MLA (8a ed.)

Willis, Dave, e Jane R. Willis. Doing Task-based Teaching. Oxford University Press, 2007.