Library:Learn to Use the Wiki/Creating Pages
Library pages should always have the format "Library:Page name" format. Library pages are restricted to library staff. If you are a Library staff requiring access, please locate your wiki Username at http://wiki.ubc.ca/Special:Preferences and then send a Web Services request at http://helpdesk.library.ubc.ca/ to be added to the Library namespace. If you do not prefix your page to put it into the Library's namespace (like a directory or folder), it will be editable by anyone with a CWL.
You can create subpages for articles related to your page using a forward slash. For example, if your main page is Library:My_Branch then you can have Library:My_Branch/More_Info_Page.
If someone has created a (sub)page that you want to use, then please make use of transclusion or importing of content. More on that through Help:Templates.