Citazione Stile APA (7a Edizione)

Hopkins, D., & Nettle, M. (2003). Passport to IELTS: New revised syllabus (Rev. ed.). Phoenix ELT.

Citazione stile Chigago Style (17a edizione)

Hopkins, Diana, e Mark Nettle. Passport to IELTS: New Revised Syllabus. Rev. ed. London: Phoenix ELT, 2003.

Citatione MLA (9a ed.)

Hopkins, Diana, e Mark Nettle. Passport to IELTS: New Revised Syllabus. Rev. ed. Phoenix ELT, 2003.