Hornby, A. S., Turnbull, J., Lea, D., Parkinson, D., Phillips, P., & Francis, B. (2010). Oxford advanced learner's dictionary (Eight edition.). Oxford University Press.

Hornby, Albert Sydney, Joanna Turnbull, Diana Lea, Dilys Parkinson, Patrick Phillips, and Ben Francis. Oxford Advanced Learner's Dictionary. Eight edition. Oxford ; New York: Oxford University Press, 2010.

Hornby, Albert Sydney, et al. Oxford Advanced Learner's Dictionary. Eight edition. Oxford University Press, 2010.