Templates allow editors to use the same format for multiple pages. Should something need to be added, or modified it allows us to change just one page rather than multiple pages of the same information.
Citation templates are for use when citing Eberron or Dungeons & Dragons source books. They are based on the Wikipedia cite book template. They are divided into the various functional areas of the wiki.
The Sourcebook Citation Templates are used when referencing sourcebooks and adventures. For more information, including usage, see Template:Cite book.