


ISBN-13: 9781447265719
Mass-market paperback

ISBN-13: 9780330398015
3rd 4/4 editionTrade paperback

ISBN-13: 9780786230747
Large type / large printHardcover

ISBN-13: 9780613230322
Turtleback School & Library editionHardcover

ISBN-13: 9780330337489
New editionMass-market paperback