For more information on comparing APA, MLA, and Chicago take a look at this handy Citation Style Chart from OWL Purdue.
Citations should be formatted as a "hanging indent", which means that all lines are indented except the first. It looks like this:
Author(s). “Title of Article.” Name of Periodical, vol. ##, no. ##, date published, pp. ##-##. Database Name, DOI.
Below are links to instructions on how to create a hanging indent in Microsoft Word and Google Docs