Remember that most databases (Proquest, Ebscohost, etc) and the Library Catalog WorldCAT will create your citations for you. When you use other sources, especially webpages, Citation Builders can be a helpful tool. Be sure that you enter all the information carefully including spelling and capitalization.
Tips
Google Scholar, a search engine of peer-reviewed articles and other scholarly content, has a 'Cite' button to cite items you find there.
This video discusses how to search and make the most of Google Scholar.
Around the 4 min. mark of this video, the 'Cite' button is demonstrated.