To cite an interview that you conducted in MLA Style, you just need to combine a few simple pieces of information. Use this link to see the example available on the Excelsior College OWL MLA Style Guide. Select the "Personal Interview" example.
Valencia College provides two, nicely organized MLA Style Citation Guides: one for citing Electronic Resources and one for citing Print and Other Resources. Use this link to navigate to one of these guides, then click for color-coded examples of MLA style citations.
Check out these helpful, free, online guides and websites for MLA Style: