Thanks for the recommendations! I will look for some of these books. Unfortunately I live in such a small town, we don't have a book store, so it will be a few days before I can go look.
I have tried to order Joan Gordon's book through Amazon before, but they always respond that they are currently out of that book and they will notify when it becomes available and then I never hear from them again.
Thanks for the link, I will try again. Hopefully I will get one this time...