CAJUN ACCORDION DISCUSSION GROUP
I bought the book and cassette when it first came out.. I may have gotten mine from The Button Box... but it is available from Eric Martin direct. Also try the French website CARUHEL a music publisher and box player Yann Dour.
Though not in his catalogue.. Yann Dour was involved in the production of L'Accordeon Cajun. Send him an e-mail.
Thsank