A time for sleep ; how the animals rest
By: by Millicent Selsam ; illustrated by Helen Ludwig
Publisher: E.M. Hale
Published: [n.d.]
Place of publication: Eau Claire
Language: eng
Number of pages: 57
Subjects: Animals; Sleep; Habits and behavior
Description: 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.