| GMD | Text |
| Classification | 577.8 REY |
| Publisher | New York, Scholastic, c2011 |
| Subject | Mutualism (Biology) -- Juvenile literature.Symbiosis -- Juvenile literature.Plants -- Juvenile literature.Animals -- Juvenile literature. |
| Topic | Grade 2-3 Reading (420L-820L) |
| Series | Scholastic reader., Level 3.Scholastic reader.#Level 3 |
| Description | 32 p. : col. ill. ; 23 cm. |
| ISBN | 9780545331470 |