Problem with one of my instructors?

I am currently a Junior majoring in Information Technology with a minor in Criminal Justice. I'm taking my first CJ class online because that is the only way it is offered. I need some advice about my instructor for this class.

While I've been doing well in discussions and papers, I seem to be failing at quizzes. And I've found out why. The information needed to pass the quizzes is not found in any of the information he has provided us! For example, 1 quiz had questions about material from week 7 when we were only at week 4. The next quiz had questions about material from week 8 when we're only in week 6. In addition, very few, if any, of the questions from either quiz were in our textbook. Instead, they were in another book, one that was not assigned nor spoken about by the instructor.

I do not believe this is right. An instructor cannot expect us to answer questions when the information for those answers is in a different book or a different book than is needed for the class. Any advise on what I should do? I don't want to fail the class because of two quizzes (which is all that is assigned for the class).