It is called a citation which is also called as
reference. A citation or reference identifies a source of information
(uniquely). It is an article which usually has two parts: (1) each section of
text is marked as an inline citation which is either based on or quoted from an
outside source. the said inline citation may be a superscript footnote number
or a short citation; and (2) list of full references which gives complete and
formatted detail about the source which enables readers of the article can find
it and verify it.
