Wikibooks:Authorship

An author is broadly defined as the originator of a work or idea. Authorship usually determines responsibility for what is created. Authors may also have rights to their works that others do not. Where you and the author are might affect what rights and responsibilities authors have for their work and what rights you have to an author's work. Wikibooks is not the author for any works, but the license authors agree to when contributing to Wikibooks allows you to link back or include the URL for works as a means of attributing the authors' work

Wikibooks also cannot give you permission to use works or parts of works under different conditions because Wikibooks is not the author. For that you must get permission from each person who has copyrights to the work or the parts of the work you wish to use in your jurisdiction, which may or may not be the author or person associated with a revision in the page history.

Some books may build on prior works in which permission to use under the CC-BY-SA license was obtained from the author or current copyright owners before inclusion. Books which build on prior works must include an Authors page with a list linking to each prior work used. The Authors page must not be used to include the names of people contributing directly to Wikibooks because the criteria for authorship claims varies from jurisdiction to jurisdiction. When you add prior work used with permission under the CC-BY-SA license, you should link to the prior work in the edit summary to allow people to know when they may need to acknowledge the authors of prior works.