a citation
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.
to summon officially or authoritatively to appear in court.
To be contrary to (something).
To deny the truth or validity of (a statement or statements).
To oppose (a person) by denying the truth or pertinence of a given statement.