APA (7. basım) Alıntı

Harrison, L., Snelling, R., & Travis, P. (2021). Practice tests for IELTS (First edition.). HarperCollins.

Chicago Style (17. basım) Atıf

Harrison, Louis, Rhona Snelling, ve Peter Travis. Practice Tests for IELTS. First edition. New York: HarperCollins, 2021.

MLA (9th ed.) Atıf

Harrison, Louis, et al. Practice Tests for IELTS. First edition. HarperCollins, 2021.