It's only one side of A4 (not that it needs to be any longer I guess). You can see it here: http://www.scribd.com/fullscreen/148929222?access_key=key-17wpmedwiui5fi0a5zks&allow_share=true

The referendum question will be: "Do you think that the United Kingdom should be a member of the European Union?"

Hmmm, interesting...