<ref>{{Cite book |first = George |last = Weigel |authorlink = George Weigel |coauthors = |title = The Truth of Catholicism |publisher = [[Harper Collins]] |date = 2001 |location = New York City |pages = |url = |doi = |id = |isbn = 0-06-621330-4 }}</ref>
External links (There are several reasons why this section should appear as the last appendix section. So many articles have the External links section at the end that many people expect that. Some External links and references sections are very long, and when the name of the section is not visible on the screen, it could cause problems if someone meant to delete an external link, and deleted a reference instead. Keeping the External links last is also helpful to editors who patrol external links.)