| GMD | Text |
| Classification | 551.46 HUG |
| Publisher | Washington, D.C., National Geographic, 2013 |
| Subject | Ocean -- Juvenile literature.Marine ecology -- Juvenile literature. |
| Topic | IPC |
| Series | National geographic little kids. |
| Description | 128 p. : col. ill., col map ; 26 cm. |
| ISBN | 9781426313684 |
| Suitable | From 6 To 8 |