IPA: //saɪˈteɪʃənl//
KK: /saɪˈteɪʃənl/
Relating to the act of quoting or referencing a source in writing or speech.
The research paper included several citational references to support its claims.
Citations are derived from "citare" (meaning to summon or call) and the suffix "-al" (meaning relating to). The word "citational" refers to something that is related to or involves citations, typically in the context of referencing sources.
Think of 'calling' or 'summoning' ('citare') to remember that 'citational' relates to references or citations.