APA (7th ed.) Citation

Khaw, P. T., Shah, P., & Elkington, A. R. (2004). ABC of eyes (Fourth edition.). BMJ Books.

Chicago Style (17th ed.) Citation

Khaw, P. T., P. Shah, and A. R. Elkington. ABC of Eyes. Fourth edition. London: BMJ Books, 2004.

MLA (9th ed.) Citation

Khaw, P. T., et al. ABC of Eyes. Fourth edition. BMJ Books, 2004.