I need to quote something from within a novel. I have a fictional novel here, but at the end there's a small excerpt from an interview with the author (alongside the author's note, translator's note, etc).

I'm not sure how to reference the quote. It's on page 208 of the novel, and the interview was conducted by Catherine Thankamma. Normally I'd just quote a line and state the page, but I'm not sure how (MLA style I think) quote out of a fictional novel and use non-fictional information that has been added to the end of the novel.