 | This is an essay. It contains the advice or opinions of one or more Wikipedia contributors. This page is not an encyclopedia article, nor is it one of Wikipedia's policies or guidelines, as it has not been thoroughly vetted by the community. Some essays represent widespread norms; others only represent minority viewpoints. |
 | This page in a nutshell: It is better to add a citation for most sentences rather than give the impression that some material is not cited. Due care is needed when splitting paragraphs or moving content around to avoid creating fragments of texts that appear unreferenced or are misattributed to wrong references. |
Wikipedia:Verifiability policy requires that the material must be attributable to reliable sources. This means others must be able to check that the material comes from a reliable source. When the material is attributed to a source by using an inline citation, anyone can check to verify the statement by reading the source.
The material must also be neutrally written and not contain original research. It is better to place each citation closely where it verifies each material than use one citation at the end of a paragraph because the content may be rearranged or anyone may believe the uncited content is unsourced. Without placing each citation where it verifies each material, it could lead to concerns of original research and eventually deleted content.