I have no idea how to figure out my GTA IV serial code number

I have 2 booklets inside but cant find it =/ once agian im the original poster I have 2 booklets inside but cant find it =/ once agian im the original poster

The code should be on the bottom in a white box in the back of the book itself. outside the book. The code should be on the bottom in a white box in the back of the book itself. outside the book.