Cita APA

Roberts, R. (2004). IELTS foundation. Oxford: MacMillan Education.

Chicago Style Citation

Roberts, Rachael. IELTS Foundation. Oxford: MacMillan Education, 2004.

Cita MLA

Roberts, Rachael. IELTS Foundation. Oxford: MacMillan Education, 2004.

Atenció: Aquestes cites poden no estar 100% correctes.