I understand you contibuted by writing 1 chapter, but as anons say, this should not be a money making book, not matter if Capt Ray, etc claim to not make money off it. It should be offered free and donations accepted to cover costs of publishing. Any $ over direct costs should be donated and that should have been made clear in the book itself. Too late now, but some here will say it's a form of paytriotism and rightly so.
If it was truly about getting the word out, it would be a free download. Many can not afford to buy a book.