Cita APA

Hadfield, J., & Hadfield, C. (1999). Presenting new language. Oxford: Oxford University Press.

Chicago Style Citation

Hadfield, Jill, i Charles Hadfield. Presenting New Language. Oxford: Oxford University Press, 1999.

Cita MLA

Hadfield, Jill, i Charles Hadfield. Presenting New Language. Oxford: Oxford University Press, 1999.

Atenció: Aquestes cites poden no estar 100% correctes.