| GMD | Text |
| Classification | 577.7 RAT |
| Publisher | Washington, D.C., National Geographic Society, 2015 |
| Subject | Coral reefs and islands -- Juvenile literature.Coral reef ecology -- Juvenile literature. |
| Series | National Geographic kidsNational Geographic kids readers.#Level 2. |
| Description | 32 p. : col. ill., col. map ; 24 cm. |
| ISBN | 9781426321139 |