Cita APA

Vanessa Jakeman. (2004). step up to IELTS. New York: Cambridge University Press.

Citación estilo Chicago

Vanessa Jakeman. Step Up to IELTS. New York: Cambridge University Press, 2004.

Cita MLA

Vanessa Jakeman. Step Up to IELTS. New York: Cambridge University Press, 2004.