Citazione Stile APA (7a Edizione)

Sasikumar, V. (2007). A course in listening & speaking I. Cambridge University Press.

Citazione stile Chigago Style (17a edizione)

Sasikumar, V. A Course in Listening & Speaking I. New Delhi: Cambridge University Press, 2007.

Citatione MLA (8a ed.)

Sasikumar, V. A Course in Listening & Speaking I. Cambridge University Press, 2007.