Have you tried www.books.google.com ?
You may not be able to download it for free, but you may be able to preview some of the pages and find your answer there, or at least find a library or store that carries it.
www.amazon.com always has used books for cheap prices. You can usually receive it within a few days too. I found a used textbook on there once for 2.00! and it was in good shape. Just a suggestion...
Student or Learner