APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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