ebrary, Inc, Field, D., Tillotson, J., & Macfarlane, M. (2009). Ophthalmic study guide for nurses and health professionals. M&K Update.
芝加哥风格引文ebrary, Inc, Dorothy Field, Julie Tillotson, 与 Mandy Macfarlane. Ophthalmic Study Guide for Nurses and Health Professionals. Keswick [England]: M&K Update, 2009.
MLA引文ebrary, Inc, et al. Ophthalmic Study Guide for Nurses and Health Professionals. M&K Update, 2009.
警告：这些引文格式不一定是100％准确.