Click on Citation to generate a pop-up box with a formatted citation. Change the style using the options at the right.
Cite Functionality - Google Scholar
Look for the Cite hyperlink under a citations in Google Scholar. This provides formatted citations in a limited number of styles in a pop-up window.
Cite Functionality - Sample Database
Many databases will provide a formatted citation for you to copy and paste to your bibliography. Look for links that says Cite or Export to use this helpful feature.
Here is an example of what this looks like in EBSCO databases.