Try Outdoor Air? Book shop. I think it is on Toronto Street, which is a short street east of Yonge, but do not remember the cross streets, Richmond maybe one of them. It is on the southeast corner, down some stairs, in the basement of the building. It is one of those out of the way places, but may have what you are looking for. We went there looking for stuff on Costa Rica and I think New Zealand. Interesting shop. Have a good trip and hope you get a book.