Audio Books Downloads

You can’t download audiobooks for free because that is violating copyright. That steals from the author and the actor that read the book.

http://www.robertcormier.com
If you follow the link above, to Random House, you’ll find you can, for a price, download an audio version of "The Chocolate War" by Cormier. Keep looking at various editions there for the least expensive.

His books are under copyright, so I doubt you’ll find them for a free download, though a library might supply you with one… call a good public library in your area and ask.
It can’t hurt, and may provide you with what you want.

http://www.amazon.com
Putting both title and author into the search boxes at Amazon yields 230 results… many duplications, study guides, and his book ‘Beyond the Chocolate War.’
The only one I saw for PDF download was apparently the book with a study guide, pretty early on in the pages containing versions or guides for this book. It cost less than the book at the site above. Here it’s about $5.+ and above it ran to $7.+

Former links I had that offered books to read are now domains, many of them for sale, all only offering links to places like Amazon and publishing houses.
Good luck finding what you need. Still suggest a library, for free.