Citazione Stile APA (7a Edizione)

ebrary, Inc, Field, D., Tillotson, J., & Macfarlane, M. (2009). Ophthalmic study guide for nurses and health professionals. M&K Update.

Citazione stile Chigago Style (17a edizione)

ebrary, Inc, Dorothy Field, Julie Tillotson, e Mandy Macfarlane. Ophthalmic Study Guide for Nurses and Health Professionals. Keswick [England]: M&K Update, 2009.

Citatione MLA (9a ed.)

ebrary, Inc, et al. Ophthalmic Study Guide for Nurses and Health Professionals. M&K Update, 2009.