ISBN:978-1-4391-3449-8, $15.00
Trade (July 2011)

ISBN:978-1-4516-3828-8, $7.99
Paperback (September 2012)

DOI:9781439134498, $6.99
eBook (July 2001)

ISBN:1-4391-3420-0, $14.99
Trade (March 2011)

ISBN:978-1-4516-3809-7, $7.99
Paperback (March 2012)

DOI:9781439134207, $6.99
eBook (March 2011)