APA (7. basım) Alıntı

Harrison, M., & Whitehead, R. (2006). IELTS practice tests: With key. Heinle Cengage Learning.

Chicago Style (17. basım) Atıf

Harrison, Mark, ve Russell Whitehead. IELTS Practice Tests: With Key. London: Heinle Cengage Learning, 2006.

MLA (9th ed.) Atıf

Harrison, Mark, ve Russell Whitehead. IELTS Practice Tests: With Key. Heinle Cengage Learning, 2006.