Time for Sleep
Edición de la obra How Animals Sleep
| Autor | Millicent E. Selsam |
|---|---|
| Editorial | Addison-Wesley Pub Co |
| Fecha de publicación | June 1953 |
| Formato | School & Library Binding |
| ISBN-13 | 9780201093698 |
| ISBN-10 | 0201093693 |
| Número de Cutter | S468t |
Tells and shows how many animals sleep, whether standing up or lying down, in groups or individually, and for long or short periods of time.