APA aipamena

Cameron, P., & Penny Cameron; Vanessa Todd. (2006). Prepare for IELTS: Academic practice tests. Tp. Hồ Chí Minh: Trẻ.

Chicago Style aipamena

Cameron, Penny, và Penny Cameron; Vanessa Todd. Prepare for IELTS: Academic Practice Tests. Tp. Hồ Chí Minh: Trẻ, 2006.

MLA aipamena

Cameron, Penny, và Penny Cameron; Vanessa Todd. Prepare for IELTS: Academic Practice Tests. Tp. Hồ Chí Minh: Trẻ, 2006.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.