Generally, a citation will include information that answers 4 basic questions: who created the work, when the work was created, what the work is called, and where the work was found.
To cite a dissertation in APA, you may have to include additional information depending on whether the dissertation was published or not.
we do not distinguish between published and unpublished dissertations.
To cite a dissertation, include in the entry the author, title, and date of publication as core elements.
These identifiers create links and are designed to accept a single value.