Please note: many library databases include citations in the individual results' records. If you click on the title of an article, there is often a suggested citation in that article record. Google Scholar also includes citations under a link called Cite, so you could search for an item you already have in Google Scholar and use its citation.
Zoterobib—Before you start, verify the citation style setting in the blue box, then you can search for your article and make a citation that way or manually enter the information to make a citation.
It's a smart idea to copy the citation and paste it into Word as Text Only—an option under the Paste button—and then just get in the habit of putting certain words—titles, etc.—back into italics. That's much easier than pasting straight from the Internet into Word and then having to undo different web formatting for each citation.
It's also a smart idea to double-check the form of the citation against OWL.