There are several aids to the MLA citation style
Try KnightCite for individual citations (on the fly)
Explore Zotero for full scale research tracking plus citations (download app)
MLA Internation Bibliograpgy (EBSCOhost version) has a helpful auto-cite feature.
In the full record (not the browse list) for an article or essay, look to right for the Cite icon. Then choose the MLA option. Copy/paste the citation.
CAVEAT: You must always cofirm the accuracy of computer generated citation. Not guarnteed!