ISBN:0-671-31859-4, $23.00 Hardcover (November 2001)
ISBN:0-7434-3617-2, $7.99 Paperback (July 2003)
DOI:0671318594, $4.00 eBook (November 2001)
ISBN:0-671-87846-8, $6.99 Paperback (October 1997)
