Use either left hand index, 'thread' links in green bar at top of page or the back arrow in your browser.
Select Print from File dropdown
Currently selecting any external link will take you to the linked website (i.e. it will not open a new window).
Therefore to get back to the wiki you need to click your browsers back arrow.
Alternatively you can open links in a new window by left clicking on the link and selecting Open Link in New Window
Referencing a page
If you want to reference a page, for instance as the source of a report do not use the web address shown above instead from the Tools drop down select Info and then copy the Tiny Link address
Ask a question or make a comment
Select Ask a question from left hand index and follow the instructions