General format
[Ref #] A. A. Author(s). Title
Example
[1] L. Bass, P. Clements and R. Kazman, Software Architecture in Practice, 2nd ed. Reading, MA: Addison Wesley, 2003. pp. 15-64. [Online]. Available: https://ebookcentral.proquest.com
Note specific to eBooks: For electronic resources found on the Internet include the full URL