APA (7th ed.) Citation

Cassidy, L., Crawley, L., Jutley, G., & Olver, J. Ophthalmology at a glance (Second edition.).

Chicago Style (17th ed.) Citation

Cassidy, Lorraine, Laura Crawley, Gurjeet Jutley, and Jane Olver. Ophthalmology at a Glance. Second edition.

MLA (9th ed.) Citation

Cassidy, Lorraine, et al. Ophthalmology at a Glance. Second edition.