I wonder if you can help???

I’m looking for a book. Quite an old book but a very important book. This book was written over 30 years ago and is approx: 245 pages long. It’s brown with gold binding. It covers the much sought after subject of Fly Fishing and is written by J.R Hartley. I have tried many bookshops but to date have had no luck. I wonder if perhaps on line book sellers may have a copy?

Thanks 🙂