American Psychological Association (APA) Citation Style Guide

Format: 

Last Name, First Initial. Middle Initial. (Publication Year). Title of eBook.  Retrieved from URL. Accessed (date).

Example:

Hall, J.B., Schmidt, G.A. Wood, L.D. (2005). Principles of Critical Care. Retrieved from: http://www.accessmedicine.com/resourceTOC.aspx?resourceID=76 Accessed July 5, 2011.

• All citations need to be in a hanging indent.