Examples are not double-spaced, but your References list should be double-spaced
Examples do not show indented lines after the first line, but yours should be indented
Author's Last Name, First Initial. Middle Initial. Title of entry or article. In Name of editor (Ed.), Name of reference source. City of publication, State: Publisher. (If retrieved from a database, it will look like a print source)
Author's Last Name, First Initial. Middle Initial. Title of entry or article. In Name of editor (Ed.), Name of reference source. Retrieved from complete URL from authoritative website
Author's Last Name, First Initial. Middle Initial. Title of entry or article. In Name of reference source. doi: number
Example:, E.B., & L.E. (2009). Dsylexia. In S. Wallace (Ed.), A Dictionary of education. Thousand Oaks, CA: Sage.
Photonics. In The Columbia Encyclopedia. (6th ed.). Retrieved from http://www.encyclopedia.com/doc/1E1-photonics.html
Guttentag, J. Demand clause. In Mortgage encyclopedia. doi: 10.1036/0071458492