Don't know if this will help ( and it'll cost you!) but if you search your oven on eBay, there are a couple of people selling cookbooks specifically for it. What I saw was in the $12 range on up.
Also may want to have someone knowledgeable with small appliances give it a once-over for safety--it's from the early 1980's.
Login using the form on the top of the page to post feedback (if you are a registered user). If you have not yet registered, click here to do so. It's FREE!.