The title of this book is Muddle-headed Wombat and the Invention and is written by author Ruth Park. The book Muddle-headed Wombat and the Invention is published by HarperCollins Publishers (Australia) Pty Ltd. The ISBN of this book is 9780207132322 and the format is Paperback / softback. The publisher has not provided a book description for Muddle-headed Wombat and the Invention by Ruth Park.