citation vs quotation

citation and quotation both are nouns.

Word	Noun	Adjective	Verb	Adverb
citation	Yes	No	No	No
quotation	Yes	No	No	No

As nouns, citation and quotation are synonyms defined as:

citation and quotation: a short note recognizing a source of information or of a quoted passage

Other synonyms of citation include acknowledgment, cite, credit, mention, reference.

As nouns, citation and quotation are synonyms defined as:

Other synonyms of citation include quote.

citation (noun)	quotation (noun)
an official award (as for bravery or service) usually given as formal public statement	the practice of quoting from books or plays etc.
a short note recognizing a source of information or of a quoted passage	a passage or expression that is quoted or cited
a summons that commands the appearance of a party at a proceeding	a short note recognizing a source of information or of a quoted passage
a passage or expression that is quoted or cited	a statement of the current market price of a security or commodity
(law) the act of citing (as of spoken words or written passages or legal precedents etc.)