I have a question about in-text citations. I am in the process of completing a literacy argument for my English class, in which, the author of the...

I have a question about in-text citations. I am in the process of completing a literacy argument for my English class, in which, the author of the story is written in the introduction paragraph. For the reminder, when doing in-text citation should I list the author and page number or just page number?

Thanks