No no no no. I speak now from personal experience (but not on this kind of thing). Do not. Do not. Do not. Don't. Do not. Create a paper trail identifying yourself as a cheater. I don't think having that book is cheating but just by asking, you are admitting that it may be and like someone said, if you have to ask, it is cheating.
You are not creating a paper-trail of honesty but a nice, well-documented record of your guile, guilt, and subsequent remorse.
I am now going to bring to bear the weight of my 43 years, military, business, and medical experience, something I almost never do on SDN:
You cannot trust a bureacracy. Never. Ever. If you get caught doing something wrong or are falsely accused you have to work with it but the best thing is to stay out of its vindictive talons. This applies to every organization from the Knights of the KKK to Doctors Without Borders.