They are available to you FREE, how pray tell. Simple, go to Google. On there header you will find MORE, click it. You will find books, click it. You will have a search, or  (New! Shop at the Google eBookstore), click on it.
Up on top you will find a search box, type Archery hit the go button.
Results will be shown, on the left side up towards the top you have a FREE choice. Click it
Your world of free domain old archery books are yours to read.

                 Happy holidays Hormoan

While this is a off site post. Hopefully it will be recognized as not a threat. And left for all to enjoy and learn from.

Thanks, have a great Christmas!

Thank you and Merry Christmas to you

Thanks for the info,and Merry Christmas.

While it doesn't have as many, this site has a very nice presentation:

http://www.archerylibrary.com/

William