For a References page, your citations need to be double spaced and have a hanging indent. A hanging indent just means that every line after the first in your citation is indented 0.5".
In Microsoft Word (PC or Mac), highlight your citation and right click on it. Select "Paragraph" in the menu that appears, then under "Indentation" click on the Special drop down and select "Hanging". Make sure the "By" field is set to 0.5".
Remember that if you are citing an electronic version of another source (PDF or HTML text of a book, chapter, or journal, for example), use the format for that source type instead of for a webpage. Webpage elements, separated by a period, include:
The layout for a webpage citation is:
Author Lastname, Firstname. “Title of webpage.” Name of publishing entity. Publication month/day/year. Access month/day/year. URL.
Date, No Author
Wikipedia.. “Style Guide.” Wikipedia. Last modified July 18, 2008. http://en.wikipedia.org/wiki/Style_guide.
Date and Author
Jalopy, Mister. “Effulgence of the North: Storefront Arctic Panorama in Los Angeles.” Dinosaurs and Robots. Last modified January 30, 2009.