publisher: Viking Juvenile publish date: September 15th 2011
format: hardcover pages: 32
language: English
ISBN:
0670012882 (9780670012886)
publisher: Viking publish date: 2011
format: paperback
language: English
ISBN:
9780670784868
publisher: Scholastic publish date: January 1st 2011
format: paperback
language: English
ISBN:
0545440440 (9780545440448)