Citazione Stile APA (7a Edizione)

Naunton J. Jon. (2005). Head for Business. Intermediate Student's Book. New York, Oxford University Press, 2005.

Citazione stile Chigago Style (17a edizione)

Naunton J. Jon. Head for Business. Intermediate Student's Book. New York, Oxford University Press, 2005, 2005.

Citatione MLA (9a ed.)

Naunton J. Jon. Head for Business. Intermediate Student's Book. New York, Oxford University Press, 2005, 2005.