to summon officially or authoritatively to appear in court.
to quote; to repeat, as a passage from a book, or the words of another.
to list the source(s) from which one took information, words or literary or verbal context.
a citation
To appeal for validation to a (notably cited) authority.
To cause (a program or subroutine) to execute.
To solicit, petition for, appeal to a favorable attitude.
To conjure up with incantations.
To call to mind (something) for some purpose.
To bring about as an inevitable consequence.
To call upon (a person, a god) for help, assistance or guidance.