Hardcover 1997 Year Voyager / HarperCollins Publisher ISBN-13: 978-0-00-225425-0 ISBN-10: 0-00-225425-5 Buy on Amazon
Paperback 2001 Year Eos / HarperCollins Publisher ISBN-13: 978-0-06-105904-9 ISBN-10: 0-06-105904-8 Buy on Amazon
Digital Books 2015 Year Gateway / Orion Publisher ISBN-13: 978-1-4732-1444-6 ISBN-10: 1-4732-1444-0 Not Available for Purchase