APA aipamena

Jakeman, V. (2011). Ielts practice tests plus 1. Harlow, England: Longman.

Chicago Style aipamena

Jakeman, Vanessa. Ielts Practice Tests Plus 1. Harlow, England: Longman, 2011.

MLA aipamena

Jakeman, Vanessa. Ielts Practice Tests Plus 1. Harlow, England: Longman, 2011.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.