The Online Writing Lab from Purdue University will be able to answer every, single question you might have about your citations and much more.
EasyBib is a great tool that can create your citations for you. However, as with any tool, you MUST check what it produces to see that it has given you correct citations. Do not assume anything is right until you check it!
Again, this is a link to the database aggregator known as EBSCO. It searches 27 databases for you, but it gives you your citation in a different way. Once you have found an article, make sure to open the full-text version in HTML or PDF. Then look for this icon on the upper right side of the article, amongst others. 
When you click on "Cite," it will take you to all of the formats, from which you just need to choose MLA.