Cita APA

Irvine, M., & Cadman, M. (1999). Commercially speaking: Student's book. Oxford: Oxford University Press.

Chicago Style Citation

Irvine, Mark, i Marion Cadman. Commercially Speaking: Student's Book. Oxford: Oxford University Press, 1999.

Cita MLA

Irvine, Mark, i Marion Cadman. Commercially Speaking: Student's Book. Oxford: Oxford University Press, 1999.