ABDO Publishing Company,, [2014]
40 pages : illustrations, maps ; 21 x 24 cm.

Children's Press, A Division of Scholastic Inc.,, 2014.
144 pages : color illustrations, color maps ; 25 cm.

The Blue Sky Press, an imprint of Scholastic Inc.,, 2014.
1 volume (unpaged) : color illustrations, color map ; 29 cm.

Bloomsbury Press,, 2014.
245 pages ; 25 cm

Children's Press,, 2012.
48 pages : color illustrations, color maps ; 23 cm.

Heinemann Library,, [2012]
48 pages ; 25 cm.

ABDO Pub. Company,, 2012.
144 pages : color illustrations ; 22 x 25 cm.

Children's Press,, 2012.
48 pages : color illustrations, color map ; 22 cm.

Viking,, 2012.
viii, 358 pages ; 24 cm

Children's Press :, 20010.
144 pages :.