At the end of the title line at the top of the page, click on the dropdown labelled "Actions". Click on "Link to this page".
In the new window or tab that opens, right click on the URL provided and copy the link.
Paste this link into the "URL" box below.
Click on the "Create Link" button.
Your complete link will appear in the "Complete Link" box. If you want to test the complete link to make sure it works, click "Test Link", otherwise, copy the link and paste it into your document or webpage.