The Sand Dunes of Indiana: The Story of an American Wonderland Told by Camera and Pen. E-book. Formato PDF Eli Stillman Bailey   -  Forgotten Books, 2017  - 

At the present time there is a rather limited number of books descriptive of sand dunes to be found in the large circulating libraries. I have consulted some of them, and credit is cheerfully given those from which I have made quotations.