Or, to purchase the paperback (ISBN 978-0-692-56874-3),
​ hardback (ISBN 978-0-313-39919-0), or ebook visit any of the following vendors:

 Amazon:  Paperback for $19.95 (or less) and Kindle for $18.95 as of January 8, 2016.

Barnes & Noble: Paperback available at $19.95 as of January 9, 2016.