Παραπομπή σε μορφή APA (7η εκδ.)

Naunton J. Jon. (2007). Head for Business. Intermediate: Student's Book. New York, Oxford University Press, 2007.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Naunton J. Jon. Head for Business. Intermediate: Student's Book. New York, Oxford University Press, 2007, 2007.

Παραπομπή σε μορφή MLA (9th εκδ.)

Naunton J. Jon. Head for Business. Intermediate: Student's Book. New York, Oxford University Press, 2007, 2007.